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The 2025 Replacement-Level Killers: Left Field & Right Field

Today the Killers list turns the corner — or rather turns to the teams receiving less-than-acceptable production in the outfield corners. While still focusing on clubs that meet the loose definition of contenders (a .500 record or Playoff Odds of at least 10%), and that have gotten about 0.6 WAR or less out of a position thus far (which prorates to 1.0 WAR over a full season), I’ve also incorporated our Depth Charts’ rest-of-season WAR projections into the equation for an additional perspective. Sometimes that may suggest that the team will clear the bar by a significant margin, but even so, I’ve included them here because the team’s performance is worth a look.

As noted previously, some of these situations are more dire than others, particularly within the context of the rest of their roster. I’ve batched the two corners into one supersized roundup because three of the seven teams below the WAR cutoff for left field also make the list for right field, and because there’s plenty of crossover in play with regards to personnel. The capsules are listed in order of their left field rankings first, while noting those crossover teams with an asterisk. As always, I don’t expect every team here to go out and track down upgrades before the July 31 deadline, but these are teams to keep an eye on.

2025 Replacement-Level Killers: Left Field and Right Field
Left Field
Team AVG OBP SLG wRC+ Bat BsR Fld WAR ROS WAR Tot WAR
Royals .211 .283 .307 62 -16.7 -2.1 -1.0 -1.2 0.3 -0.9
Reds .234 .305 .343 79 -9.7 -0.6 -6.3 -0.9 0.6 -0.3
Phillies .193 .304 .340 82 -8.1 0.1 -3.1 -0.3 0.5 0.2
Padres .231 .282 .332 75 -10.5 -0.8 3.1 -0.1 0.4 0.3
Dodgers .207 .297 .350 85 -6.8 -1.2 -1.0 -0.1 0.8 0.7
Astros .230 .307 .366 88 -5.3 -1.2 -2.4 0.0 0.8 0.8
Diamondbacks .237 .287 .396 88 -6.0 0.9 0.5 0.5 0.7 1.2
Right Field
Team AVG OBP SLG wRC+ Bat BsR Fld WAR ROS WAR Tot WAR
Royals .174 .237 .262 37 -27.0 -0.2 -6.2 -2.6 0.1 -2.5
Guardians .187 .248 .289 51 -19.6 -0.1 -3.2 -1.6 0.7 -0.9
Reds .200 .275 .350 71 -12.3 -1.0 -2.8 -0.9 0.5 -0.4
Mariners .232 .273 .375 84 -6.9 0.2 -7.2 -0.6 0.9 0.3
Phillies .285 .321 .447 112 5.4 -2.5 -11.1 0.1 0.2 0.3
Cardinals .239 .302 .396 97 -1.5 -0.5 -2.7 0.4 0.6 1.0
Twins .220 .300 .426 102 0.7 -1.3 -3.6 0.5 1.0 1.5
All statistics through July 13.

Royals*

Good grief, somehow Royals corner outfielders have combined for -3.8 WAR, suggesting that the 47-50 team would be over .500 if it had found some typically unremarkable replacement level outfielders to fill those posts. Manager Matt Quatraro has used nine left fielders and eight right fielders, with some crossover between the two. Somehow, only one player at each position has managed even a 100 wRC+ in their thin slice of playing time, namely Jonathan India in left and Drew Waters in right. India, who’s played all of 21 games in left, is new to the position at the major league level; his glove is a liability no matter where you put him and he’s hitting just .251/.332/.348 (91 wRC+) overall. Waters, who’s played 41 games in left, 21 in right, and 22 in center, has hit just .243/.288/.316 (66 wRC+) overall, suggesting his 105 wRC+ in 53 PA in right is a fluke. Mark Canha has collapsed to a 49 wRC+ with career worsts in just about every key Statcast category, though his stints on the injured list for an adductor strain and (currently) tennis elbow have possibly contributed to his woes. None of the other principals at either corner has spent time on the IL.

Hunter Renfroe, who began the year as the regular right fielder, was a full win below replacement before he was released in late May. Jac Caglianone, a 22-year-old 50-FV prospect who has taken over right, has been the next-worst, at -0.9 WAR. Caglianone entered the season ranked no. 47 on our Top 100 Prospects list but had never played above High-A; he’s hit a cringeworthy .140/.196/.264 (22 wRC+) in 138 PA while chasing 41.1% of pitches outside the zone. At some point a responsible adult would send him back to the minors for more seasoning despite the occasional 466-foot homer. Instead, he’s 4-for-40 this month including that July 10 shot. Cool, cool.

In eight seasons of doing this series for FanGraphs (plus a handful of times at Baseball Prospectus and Sports Illustrated), I can’t recall even a fringe contender so hamstrung by an inability to find reasonably productive players at offense-first positions. It’s a testament to the quality of the Royals’ pitching and the play of Bobby Witt Jr., Maikel Garcia and Vinnie Pasquantino that this team even has a shred of a chance at a playoff spot. This is the part where I normally suggest potential trade targets who could help shore up the situation; in this case the answer is “just about anyone not already on the Royals roster.” Candidates such as the White Sox’s Andrew Benintendi and the Marlins’ Jesús Sánchez look like Juan Soto and Aaron Judge next to this crowd.

Reds*

Nothing the Reds have done with either outfield corner has worked for very long or very well. Manager Terry Francona has used 10 different left fielders and eight different right fielders, with six players getting time at both. Offseason acquisition Gavin Lux has logged a team-high 34 starts in left while bouncing around to make 30 more at DH, nine at second base, and five at third. Overall, he’s hit .265/.355/.379 (106 wRC+), but his play in left has been, uh, DH-caliber (-6 FRV, -4 DRS in 278.2 innings). Austin Hays, who’s split his time about equally between left (21 starts) and DH (23 starts), has been very effective when available (.287/.323/.517, 124 wRC+) amid three separate IL stints for left calf and left hamstring strains and a left foot contusion; he and Lux have generally shared the left field and DH roles against righties.

Jake Fraley has started 39 games in right, all but one against righties; he’s hit .224/.336/.376 (100 wRC+), but has served IL stints for a left calf strain and a right shoulder sprain, the latter of which he returned from just before the All-Star break. Will Benson has split his time between left (17 starts), right (22 starts), and center (three starts), with just four from that total against lefties; he’s scuffled to a .223/.276/.427 (87 wRC+) line. Of the eight other corner outfielders Francona has tried, only Santiago Espinal has a wRC+ of at least 100 in that capacity, but that’s over just 30 PA, and his overall 63 wRC+ factors into the Reds’ placement on the third base list.

With Hays and Fraley both healthy, the Reds are in better shape than they’ve been for most of the season; the pair has spent just about two weeks together on the active roster (the second half of April). Still, between those two and the everyday play of Lux at one position or another, they’re a bit light (spoiler alert: they’ll be on the DH list as well), with a right-handed bat probably their bigger need. Unlike the Phillies (below), they’re less inclined to add payroll, but as one of the league’s younger teams, they should think in terms of multiple years. Three righties who could be available, the Rangers’ Adolis García, the Orioles’ Ramón Laureano, and the Angels’ Taylor Ward, each have another year of club control remaining; the first two will be arbitration-eligible, the last has a $6.5 million option. Red Sox lefty Wilyer Abreu, who’s got one more pre-arbitration season, offers even more upside and control but will require a greater return.

Phillies*

As noted in Wednesday’s installment, the Phillies rank 27th in the majors in total outfield WAR at 0.3, with left field the weakest of the three positions. Max Kepler spent the better part of a decade as a league-average hitter with a good enough glove to be a two-to-three-win right fielder for the Twins, but last year, he made two trips to the IL and slipped to a 93 wRC+ and 0.9 WAR. The Phillies didn’t overcommit, signing him to a one-year, $10 million deal, but his offense has continued to lag. His 90 wRC+ (.210/.307/.371) is a career low, and in his first taste of left field — the easier of the two corners — his -2 FRV is as well. Kepler’s average exit velocity is about 2 mph higher than last year, with his barrel rate improving from 6.2% to 11.4%, and his hard-hit rate from 36.6% to 44.8%, but he’s fallen 51 points short of his .412 xSLG.

Right fielder Nick Castellanos needs no introduction to readers of this annual series. Four years into a five-year, $100 million deal with the Phillies, his timing remains impeccable: he’s landed here annually. His offense isn’t completely terrible for a change; his 107 wRC+ (.273/.313/.438) is in line with his final 2022 and ’23 lines, and only three points shy of the major league average for right fielders. Alas, he’s a DH stuck in the field because the Phillies already have a better DH in Kyle Schwarber. Castellanos’ defensive metrics are on track to be his worst since 2018; after averaging -9 DRS and -12 FRV in his first three seasons in Philly, he’s at -14 DRS and -12 FRV with 66 games to go.

The Phillies have recently given a bit of playing time in left field to 25-year-old rookie Otto Kemp, an undrafted free agent who hit .313/.416/.594 at Triple-A Lehigh Valley and is at .247/.316/.337 (86 wRC+) with a 28.6% strikeout rate through 98 PA thus far in the majors. Kemp has 30-grade contact skills due to his problems with secondary stuff, and his defense at third base, his primary position in the minors, is shaky. He might work as the short half of a corner platoon, but the Phillies really need to add a quality bat. Abreu, García, and Ward each offer some firepower (not necessarily without flaws), while Benintendi and Sánchez would at least raise the production floor.

Padres

Where have you gone, Jurickson Profar? A nation turns it’s lonely eyes to you… The departure of their 2024 left fielder left a hole that the Padres have tried to fill using 10 different player. The bygone platoon of Jason Heyward and Oscar Gonzalez wasn’t up to the task. What has worked lately, particularly on the offensive side, has been using Gavin Sheets in left. The ex-White Sock has hit .265/.324/.451 (119 wRC+) in 44 games at DH, 34 in left (with all but two of them coming since May 25), and 12 at first base. Historically, the 6-foot-3, 235-pound lefty has been brutal in right field (-23 DRS, -18 FRV in 1543 innings) but has been within one run of average in the two metrics in 263 innings in left thus far. He’s been light against lefties (96 wRC+, compared to 128 against righties), so he could use a platoon partner, particularly one who can also serve as a defensive replacement; neither Brandon Lockridge nor Bryce Johnson have shown themselves to be up to the task, but this shouldn’t be the hardest problem for A.J. Preller to solve at deadline time.

Dodgers

Michael Conforto’s one-year, $17 million deal flew under the radar this past winter given the team’s fancier expenditures, but like those, the early returns aren’t too hot. The 32-year-old Conforto has hit just .184/.298/.322 (80 wRC+) with eight homers and subpar defense in left field (-3 DRS, -3 FRV). July is his first month with a wRC+ of at least 100, albeit in just 38 PA, and there’s no underlying batted ball trend suggesting notable improvement. Indeed, Conforto’s Statcast contact numbers, while still above average, are down relative to last season, and he’s lagging well behind both his .243 xBA and .421 xSLG, with his 99-point shortfall in SLG the seventh-largest in the majors.

While the Dodgers have alternatives in left, Enrique Hernández figures in the third base picture with Max Muncy sidelined, and Andy Pages — whose 205 wRC+ in 44 PA is propping up the offensive numbers here — is better used in center or right. One as-yet unexplored option would be to add rookie Dalton Rushing to the mix. The 24-year-old backstop has hit just .221/.293/.309 (73 wRC+) since debuting in mid-May, but a weekly diet of 10 PA can’t be helping his cause, and he does have 33 games of minor league experience in left.

It’s not inconceivable that the Dodgers cut bait on Conforto, particularly if they have a roster crunch. But so long as their offense is scoring a major league-high 5.33 runs per game, the matter is less urgent than their perennial need for pitching amid so many injuries.

Astros

The Astros haven’t entirely buried the Jose Altuve experiment yet, but the 35-year-old star has started just two of Houston’s last 19 games in left (and 39 overall) compared to four at designated hitter and 13 at second base. His offense (.277/.336/.465, 121 wRC+) has been fine, but his defense at the new position has been brutal (-8 DRS, -4 FRV in 325 innings), and it’s been no picnic at second either (-3 DRS, 0 FRV in 263 innings). His best position these days is probably DH, and with Yordan Alvarez sidelined due to inflammation in his right hand with no clear return date, that option is at least open.

Of the eight other Astros who have played left, the best on both sides of the ball has been Mauricio Dubón, who’s made more starts at second than left (29 versus five) while also filling in at shortstop (where he’s helped to cover for the loss of Jeremy Peña to a broken rib), third, and the other two outfield spots. He’s hitting a comparatively robust .255/.292/.415 (96 wRC+) overall and is, of course, a better defender than Altuve at either post, but he belongs at a position where he can best utilize those defensive skills. The Astro who’d merit a closer look is Zach Dezenzo, but the 6-foot-5, 220-pound rookie was recently transferred to the 60-day IL while recovering from a capsule strain in his left hand. He’s just 6-for-47 while playing left but is hitting .245/.321/.367 (96 wRC+), with a 16.4% barrel rate and a .440 xSLG offsetting his 33.9% strikeout rate. He’s eligible to return in August, so the Astros may push forward with their current jumble and hope he can help later. Still, with apologies to Cooper Hummel, Taylor Trammell, et al, this team needs a garden-variety left fielder who can hit a lick and catch the ball.

Diamondbacks

Lourdes Gurriel Jr. is now in his third season as Arizona’s left fielder. While his .251/.299/.421 slashline represents drops of 28 points of AVG, 23 points of OBP, and 14 points of SLG relative to last year — for a 10-point drop in wRC+ (from 108 to 98) — his average exit velocity, barrel rate, and hard-hit rate are virtually unchanged, and his xBA, xSLG, and xwOBA have only fallen by six or seven points. Aside from a 4.5-percentage point drop in strikeout rate, resulting in more batted balls, nothing’s really changed for him on the offensive side. He’s on this list because of a bit of bad luck here and a dip in defensive metrics there (from 3 DRS to -6, and from 1 FRV to -2), but he’ll probably remain the everyday left fielder unless the Diamondbacks clear out some outfield depth and cut salary ahead of the trade deadline — in which case he could wind up with another team on this list.

Guardians

Originally drafted and developed by the Guardians, Nolan Jones made four Top 100 Prospects lists (2019–22) before being traded to the Rockies in November 2022. Following a strong rookie season in Colorado (20 homers, 20 steals, 137 wRC+, 3.7 WAR), he battled injuries — most notably a lower back strain — and struggled in 2024, hitting just .227/.321/.320 (69 wRC+) with three homers. The Guardians reacquired him in March and have generally started him against righties either in right (45 times) or center (12 times), with nine starts against lefties spread across the three outfield positions. Unfortunately, the lefty-swinging 27-year-old’s offense hasn’t returned; he’s batting just .229/.319/.330 (87 wRC+), though as noted in the center field installment, he’s hitting the ball harder than those results suggest, with a 91.5-mph average exit velocity (3.3 mph higher than last year), an 8% barrel rate, and a 46.3% hard-hit rate. He’s cut his groundball rate, is pulling the ball more often, and has even shaved his strikeout rate to 26.5%. The 95-point gap between his .425 xSLG and his actual mark is tied for the majors’ ninth-largest.

Jones could use some better luck and a better supporting cast. Jhonkensy Noel plummeted from last year’s 118 wRC+ to zero — yes, a 0 wRC+ — with a .140/.162/.215 slashline, earning him a ticket back to Triple-A Columbus. Current platoon partner Johnathan Rodríguez has been only slightly better (.140/.189/.220, 12 wRC+). Given their 46–49 record and other trouble spots (including shortstop and center field), the Guardians may wind up selling or holding, but one trade candidate who would make sense is Laureano, who spent parts of 2023 and ’24 with the team. The Guardians did release him last May, but his 135 wRC+ for the Braves and Orioles since then suggests he’s worth another look.

Mariners

The early-April loss of starting right fielder Victor Robles to a fracture of the humeral head in his left shoulder cost the Mariners a valuable catalyst. Luke Raley took over the position, but he strained his oblique in late April, missed seven weeks, and upon returning took over the long half of a first base platoon. Leody Taveras came and went. Fortunately for the Mariners, Dominic Canzone arrived from Triple-A Tacoma and has more or less saved the day. The 27-year-old lefty, who’s closed up his stance somewhat and is swinging the bat harder, has hit a sizzling .319/.340/.564 (158 wRC+) in 97 PA. Yes, he’s chasing nearly 38% of pitches outside the zone and walking just 3.1% of the time, but he’s also barreling the ball 15.6% of the time, and both his .300 xBA and .564 xSLG are in line with his actual numbers. He’ll cool off eventually, but currently this doesn’t look like a serious problem for the Mariners, and there’s still hope that Robles can return in September to provide support.

Cardinals

Jordan Walker entered the 2023 season as a 60-FV prospect ranked no. 12 on our Top 100 list, but in parts of three seasons, he’s produced diminishing returns, including a meager .210/.267/.295 (60 wRC+) with a 33% strikeout rate in 191 PA this season. He’s been largely absent from the lineup since late May, first missing a couple of weeks due to inflammation in his left wrist, then enduring a bout of appendicitis in late June. While on his latest rehab assignment, the Cardinals are again tinkering with his swing, but so far, he’s gone just 7-for-46, albeit with five extra-base hits, at Double-A Springfield and Triple-A Memphis.

Walker’s still just 23, but it’s fair to wonder if he’ll ever live up to that lofty prospect billing, at least in St. Louis. The good news for the Cardinals is that Alec Burleson has taken over right field and absolutely raked, hitting .333/.374/.592 (158 wRC+) in 138 PA. Overall, the 26-year-old lefty has hit .293/.340/.466 (125 wRC+), though he could use a platoon partner; he has a career 52 wRC+ against southpaws.

Twins

Matt Wallner can mash. In 2023 and ’24 combined, he hit .254/.371/.515 (148 wRC+) with 27 homers in 515 PA for the Twins, even while striking out a whopping 34% of the time and spending chunks of both seasons in Triple-A. The Twins hoped that he could approximate that production across a full season, but a mid-April hamstring strain curtailed his strong start; he didn’t return until May 31 and has managed just a 91 wRC+ since. His overall line (.205/.299/.449, 107 wRC+ with 10 homers) in 41 games in right and 12 at DH rates as a disappointment. He’s getting under too many balls; his 21.8% infield fly ball rate is the second-highest of any player with at least 150 PA. Trevor Larnach, who covered right for part of Wallner’s absence and has lately been sharing the job, has hit a modest .245/.311/.415 (102 wRC+) while playing 34 games in right plus another 59 at DH and in left field. Willi Castro, the only other Twin with at least 20 PA as a right fielder, has struggled in his time there (28 games but just 15 starts) but has hit for a 124 wRC+ overall in his utility role.

Considering this is now the fifth position at which the Twins have made a Killers list, it’s clear they’ll have to solve some problems from within in order to challenge for a playoff spot. Despite his struggles, Wallner’s recent track record provides more reason for optimism than, say, Ty France at first base.


The 2025 Replacement-Level Killers: Introduction & First Base

Kamil Krzaczynski-Imagn Images

In a race for a playoff spot, every edge matters. Yet all too often, for reasons that extend beyond a player’s statistics, managers and general managers fail to make the moves that could improve their teams, allowing mediocre production to fester at the risk of smothering a club’s postseason hopes. In Baseball Prospectus’ 2007 book, It Ain’t Over ‘Til It’s Over, I compiled a historical All-Star squad of ignominy, identifying players at each position whose performances had dragged their teams down in tight races: the Replacement-Level Killers. I’ve revisited the concept numerous times at multiple outlets and have adapted it at FanGraphs in an expanded format since 2018.

When it comes to defining replacement level play, we needn’t hew too closely to exactitude. Any team that’s gotten less than 0.6 WAR from a position to this point — prorating to 1.0 over a full season — is generally in the ballpark, though my final lists also incorporate our Depth Charts rest-of-season projections, which may nose them over the line. Sometimes, acceptable or even above-average defense (which may depend upon which metric one uses) coupled with total ineptitude on offense is enough to flag a team. Sometimes a club may be well ahead of replacement level but has lost a key contributor to injury; sometimes the reverse is true, but the team hasn’t yet climbed above that first-cut threshold. As with Supreme Court Justice Potter Stewart’s definition of hardcore pornography, I know replacement level when I see it. Read the rest of this entry »


Sunday Notes: Mason Englert Has a Unique Changeup Grip and Threw a Baby Curveball To a Buddy

Mason Englert throws an array of pitches. The 25-year-old right-hander’s repertoire comprises a four-seam fastball, a sinker, a changeup, a cutter/slider, a sweeper, a “big curveball,” and a “shorter version of the curveball.” He considers his changeup — utilized at a 31.6% clip over his 13 relief appearances with the Tampa Bay Rays — to be his best pitch. More on that in a moment.

Englert, whom the Rays acquired from the Detroit Tigers in exchange for Drew Sommers back in February, will also break out the occasional… lets’s call it a baby curveball.

“I threw a few that were around 60 mph when I was in Durham,” explained Englert, whose campaign includes nine outings and a 1.84 ERA for Tampa’s Triple-A affiliate. “One of them was to the best man in my wedding. It was the first time I’d faced him in a real at-bat, and I just wanted to make him laugh.”

The prelude to Englert’s throwing a baby curveball to his close friend came a handful of weeks earlier. Back and forth between the Bulls and the bigs this season, he was at the time throwing in the bullpen at Yankee Stadium.

”I was totally messing around and wanted to see what kind of reaction I could get from Snydes (Rays pitching coach Kyle Snyder),” recalled Englert, whose major-league ledger this year includes a 4.84 ERA and a much-better 2.93 FIP. “I lobbed it in there, kind of like the [Zack] Greinke-style curveball, and landed it. I thought he would laugh it off, but instead Snydes goes, ‘Huh. You could maybe use that early in counts to some lefties.’ That was him having an openness to, ‘Hey, make the ball move different ways, do different things, use them all.’” Read the rest of this entry »


Seattle Mariners Top 29 Prospects

Colt Emerson Photo: Allan Henry-Imagn Images

Below is an analysis of the prospects in the farm system of the Seattle Mariners. Scouting reports were compiled with information provided by industry sources as well as my own observations. This is the fifth year we’re delineating between two anticipated relief roles, the abbreviations for which you’ll see in the “position” column below: MIRP for multi-inning relief pitchers, and SIRP for single-inning relief pitchers. The ETAs listed generally correspond to the year a player has to be added to the 40-man roster to avoid being made eligible for the Rule 5 draft. Manual adjustments are made where they seem appropriate, but we use that as a rule of thumb.

A quick overview of what FV (Future Value) means can be found here. A much deeper overview can be found here.

All of the ranked prospects below also appear on The Board, a resource the site offers featuring sortable scouting information for every organization. It has more details (and updated TrackMan data from various sources) than this article and integrates every team’s list so readers can compare prospects across farm systems. It can be found here. Read the rest of this entry »


The Cal Who Only Hit Homers

Stephen Brashear-Imagn Images

We’ve been writing about Cal Raleigh a lot lately, as we should. He’s currently on pace for 9.9 WAR, which would constitute the greatest season of all time for a catcher. Although his defense has taken a step back from its previous heights, Raleigh is running an absurd 182 wRC+ and leading baseball with 26 home runs. He’ll have to come down to Earth at some point, but he’s all but certain to lead all catchers in home runs for the third straight season. He’s nearly doubled the second-place Logan O’Hoppe’s 14. Raleigh has a real shot to break Salvador Perez’s record of 48 home runs by a catcher – if he keeps up his current pace, he’ll break it by 16 homers!

On May 19, Ben Clemens wrote about how well Raleigh’s new, more selective approach was working out. Even though Raleigh was taking more pitches over the heart of the plate in hitter’s counts (a trend that has continued in the ensuing weeks), the patience has allowed him to get ahead more often and do damage. “Does all of this mean that Raleigh is going to maintain his 170 wRC+?” Ben asked. “No way.” That was the only answer he could have given. To suggest otherwise would have been sabermetric malpractice. But, uh, Raleigh didn’t exactly regress back to the mean from there on out. From May 20 to June 8, Raleigh was the best hitter in baseball, slashing .348/.427/.894 with 13 homers for a 267 wRC+. His average exit velocity was 97.2 mph! That’s what it takes to – barely – hit better than Aaron Judge. Read the rest of this entry »


How To Pull the Ball to the Opposite Field

Steven Bisig-Imagn Images

Yesterday, I wrote an introduction to Statcast’s latest round of bat tracking metrics. MLB.com’s Mike Petriello wrote a real primer, so I tried to build on that by analyzing how the different metrics work together using a couple common pitch types. We’re still figuring out how to use these new toys, but today I’d like to explain how my first dive into the bat tracking metrics led me to one particular player who is doing something weird, which led me to learn something small about the way swings work. After all, that’s why we’re here exploring all these strange new numbers in the first place.

In my first shot at playing with the metrics, I tried to establish something simple. I pulled the overall bat tracking data for all qualified players, and I focused on Attack Direction, which tells you the horizontal angle of the bat at the moment of contact (or, in the case of a whiff, at the moment when the bat is closest to the ball). That seemed pretty straightforward to me. As with most bat tracking metrics, it’s also a timing and location metric. You generally need to meet inside pitches further out in front of home plate. If you’re behind the pitch, your bat will be angled toward the opposite field, and you won’t pull the ball. If you’re out in front of the pitch, your bat will be angled toward the pull side, and you’ll pull it. A player’s average Attack Direction should correlate pretty well with their pull rate, and the numbers pretty much bear that out. Attack Direction and pull rate have a .60 correlation coefficient:

Most of the dots are clustered around that very clear trendline. Players who pull the ball more tend to have their bats angled toward the pull side just as you’d expect. What interested me was that green dot way at the bottom. It belongs to Leody Taveras. I guess it is Leody Taveras, if we really believe in our graphs, which we probably should at this particular website.

Taveras has a moderately low Attack Direction, four degrees to the pull side, but he’s got the third-lowest pull rate of any player on this chart. I couldn’t help wondering how exactly he was doing that. Before I dug into it too deeply, I was reminded that the fact that he’s a switch-hitter might have something to do with it. So I pulled the data again, this time separating out all players by handedness. On the chart below, switch-hitters will appear twice:

The correlation isn’t quite as strong, because switch-hitters are now broken into two different players with two smaller samples (that’s how small-sample right-handed Patrick Bailey got way down at the bottom). But there are two green dots now! And they’re both Leody Taveras! From both sides of the plate, Taveras looks like he should have a pull rate that’s a bit above average, and instead has one of the very lowest pull rates in the game. At this point, I was officially curious, so I started poking around.

First, I specifically looked at Attack Direction on balls hit to the opposite field. Since the start of bat tracking midway through the 2023 season, when Taveras hits the ball the other way, his average Attack Direction is three degrees toward the opposite field. Only four players in baseball have an average Attack Direction that’s less oriented toward the opposite field. Oddly, they’re all sluggers. Salvador Perez, Yordan Alvarez, Aaron Judge, and José Ramírez are all at two degrees toward the opposite field, and Austin Riley is tied with Taveras at three degrees. Taveras is definitely not a slugger. He could not be more different from these five guys. So not only is he doing something way different from most hitters when he goes the opposite way, but the only players out on that ledge with him have completely different swings than he does. There really is something weird about him.

Next, I tried looking specifically for balls hit to the opposite field even though the bat was angled toward the pull side at the moment. Just 21% of balls hit to the opposite field have the bat angled toward the pull side at all. I ran a Baseball Savant search, setting the minimum Attack Direction at seven degrees toward the pull side. Since bat tracking started, 5.5% of Taveras’s batted balls have fallen into this category. Among the 375 players with at least 200 BIP over that period, that’s the 11th-highest rate. Elehuris Montero is the champion at a shocking 10.5%, but no player who has put as many balls in play as Taveras has run as high a rate as he has.

At that point, I decided to look at individual balls that fell into this category: balls that go to the opposite field even though the bat is angled toward the pull side at contact. How exactly does this happen? Try to picture it in your mind. If the bat is angled toward the pull side, and it’s being swung in that direction anyway, how does the ball end up going in the opposite direction? There are two main answers. Here’s the less common way:

That’s Taveras way, way out in front of a curveball, hitting it off the very end of his bat. He cued it up so perfectly that if the end of his bat were cupped, the ball might have just gotten stuck in there. So that’s one way to do it. In fact, 21% of the balls we’re looking at, hit to the opposite field even though the Attack Direction is seven or more degrees to the pull side, are squibbers hit off the end of the bat below 80 mph. That’s one way to do it.

The other way is much more common, and it looks like this:

Of those same balls, hit to the opposite field even though the Attack Direction is seven or more degrees to the pull side, 50% are classified as popups, and 65% have a launch angle above 38 degrees. Basically, when you hit a ball in that weird manner, it’s almost always going to be either a cue shot or a popup. Leody Taveras taught me that.

This has a lot to do with Attack Angle. If your bat were perfectly parallel to the ground, but angled toward the pull side, it would be pretty much impossible to hit the ball the other way. But when you pop the ball up, you’re not hitting it flush. You’re getting under it. And regardless of the situation, your bat is almost never parallel to the ground. According to Statcast, the bat is angled downward on more than 80% of swings. If you just look at popups, that number is up above 90%. About half of popups come on four-seamers and cutters, where the batter has trouble catching up and swings just under the pitch. The rest come on softer stuff, and those pitches are usually low in the zone. I need you to do some 3D visualization in your head here, because my diagram is not very good:

On the left is a perfectly level bat, parallel with the front of the plate. Now imagine you’re angling your bat downward and you get just underneath the ball. If your bat is angled toward the opposite field or, as in the middle example, straight toward center field, you’ll likely just foul the ball off behind you or into the opposite field stands. Once you angle it toward the pull side, however, it can stay fair, bouncing up and toward the opposite field. Please imagine that the bat on the right looks so funky because it’s foreshortened, pointed out toward the first baseman. Taveras can show us what that looks like in the real world:

If his Attack Direction were zero, he would’ve fouled the ball up and into the stands down the third base line. He only kept it fair because of his Attack Direction of 18 degrees.

Look, I don’t have a big takeaway here. I just think this interesting. I think it highlights the way that the angle of the bat informs even the most mundane batted balls. If you’d asked me yesterday whether it’s possible to go the opposite way while your bat was angled toward the pull side, I would’ve had to think about it, but my first reaction would’ve been to say no. The bat and ball move through space so quickly that they can be hard to track, but the bat tracking metrics help explain why exactly Taveras pops out so very, very often, and how it’s even possible to hit a ball like that in the first place.


How Cal Raleigh Learned To Stop Swinging But Keep Hitting Bombs

Steven Bisig-Imagn Images

Cal Raleigh has a lot of power. That’s always been his calling card, at least on offense. In each of his three full major league seasons, he’s posted a below-average OBP and an above-average offensive line. In cavernous T-Mobile Park, the hardest place to hit in baseball, his 34 home runs and .436 slugging percentage in 2024 were downright titanic. This year, though, he’s tapped into something new.

Or, well, his results are absolutely something new. One very interesting thing about Raleigh’s spectacular 2025: It hasn’t come from more raw power. Maximum exit velocity? Nothing new for Raleigh. Neither is his average exit velocity, nor his hard-hit rate, both of which are broadly in line with 2024. His bat speed is the same. When he’s trying to hit a home run, he’s doing it the way he always has.

But while his ability to hit baseballs hard might be the same as it’s always been, he’s demonstrating that ability more often than ever before. He’s both putting the ball in the air and pulling his elevated contact more frequently, and more of his batted balls are barrels, too. He’s striking out less frequently, with a career-high contact rate and career-low swinging strike rate.

Nothing is ever so simple that it’s driven by one thing, but I think there’s one important change driving Raleigh’s surge. It’s something he’s been working toward for a few years, in fact. When Raleigh is ahead in the count and pitchers throw him meatballs over the heart of the plate, he’s swinging less than ever before:

Cal Raleigh’s Heart Swing%, Ahead In Count
Year Swing%
2021 83.7%
2022 85.0%
2023 76.1%
2024 77.9%
2025 73.4%

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Andrés Muñoz Is an Analytical Blind Spot

Stephen Brashear-Imagn Images

If you are familiar with Andrés Muñoz, the baseball player, you may know that he is good. It may be enough for you to simply witness and bask in his elite performance, and question it no further. (Rarely are we so content here.) You may not realize he is unusual; you may not care. Often in baseball, being good and being unusual go hand in hand. This is a short exploration, albeit one preceded by an exorbitantly long prologue, of why Muñoz is good and unusual.

If you are familiar with FanGraphs, the baseball website, you may know about approach angles. If not: A pitch’s approach angle is the three-dimensional angle at which it crosses the front of home plate. Broken down into its two-dimensional vectors, it becomes vertical approach angle (VAA) and horizontal approach angle (HAA).

VAA is a description of pitch shape and thus depends on other physical attributes of the pitch — namely, its velocity and acceleration in all three dimensions. While representing the most distilled measurements of a pitch’s movement through space, the velocity and acceleration vectors themselves are functions of release height, release angle, release speed, spin rate, spin axis, spin efficiency… it goes on. VAA, as it happens, is very sensitive to pitch height. Reporting a pitch’s average VAA is not especially meaningful without either providing locational context or stripping it of that context all together.

To accomplish the latter, I developed VAA Above Average. It’s a simple recalculation that communicates a fastball’s flatness or steepness irrespective of pitch height. Through this it’s much easier to see that, for example, flatter VAAs induce higher swinging strike rates (SwStr%) at all pitch heights compared to steeper VAAs (forgive the half-baked visualization):

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Suddenly, the Mariners Are Mashing

Jerome Miron-Imagn Images

Though they’ve lost two straight to trim their AL West lead to a single game, the Mariners are a first-place team thanks to a recent 16-4 stretch that has boosted their record to 20-14. As I noted last week, their success for a change hasn’t been driven by the strength of their rotation, which has been without George Kirby thus far due to shoulder inflammation and is now without Logan Gilbert, who landed on the IL in late April with a flexor strain. Rather, Seattle been carried by an exceptionally potent offense, a marked contrast from recent years, particularly 2024, when the team’s failure to score contributed to the August firings of manager Scott Servais and hitting coach Jarret DeHart. These Mariners have benefited not only from Cal Raleigh’s heavy hitting, but from the ongoing presence of Randy Arozarena, who was acquired just before last year’s trade deadline, and rebounds from players who struggled due to injuries last season, such as J.P. Crawford and Jorge Polanco. The return of Hall of Famer Edgar Martinez to their coaching staff has helped, and it does appear as though T-Mobile Park has been a bit more forgiving than usual.

Raleigh and Polanco are the hitters getting the headlines. Raleigh is currently slashing .240/.359/.574 with a major league-high 12 homers, and he ranks third in the AL in slugging percentage behind only Aaron Judge and Alex Bregman, and fourth in the league in wRC+ behind those two and Jonathan Aranda(!). While Polanco doesn’t have enough plate appearances to qualify for the batting title because an oblique strain has limited him to swinging left-handed and to DHing instead of playing the field, he’s hit a ridiculous .369/.407/.750 (233 wRC+) with nine homers in just 92 plate appearances (14 short of qualifying). Crawford is batting .294/.417/.404 (151 wRC+) and Arozarena .224/.366/.414 (136 wRC+). Both players are walking over 15% of the time, with Raleigh drawing a pass 14.4% of the time; the team’s 11.2% walk rate leads the majors.

All of that has helped the Mariners withstand a comparatively slow start by Julio Rodríguez (.206/.308/.375, 103 wRC+) and a wave of injuries that has forced right fielder Victor Robles, outfielder-first baseman Luke Raley, utilityman Dylan Moore, and second baseman Ryan Bliss to the injured list alongside the aforementioned rotation stalwarts [Update: Moore was activated just after this article was published]. Even so, the Mariners have gotten a 100 wRC+ or better from every position besides first base (where Rowdy Tellez, Donovan Solano, Raley and Moore have combined for a 60 wRC+) and right field (where six players, among them the injured Robles, Raley and Moore, have combined for a 90 wRC+). Read the rest of this entry »


Executive’s View: How Have Analytics Impacted a General Manager’s Job?

Joe Nicholson, Troy Taormina, Nick Turchiaro, Jeff Curry-Imagn Images

It is well known that analytics have changed the baseball landscape. Moreover, it is widely understood that the evolution is ongoing. Embracing innovation, especially within the technology realm, has increasingly become a must for teams looking to keep up with — and ideally get a step ahead of — the competition. For front offices across the game, it’s adapt or die.

What does that mean for the general managers and presidents of baseball operations who lead those front offices? In other words, how have the ever-continuing advancements impacted their jobs over the years? Wanting to find out, I asked four longtime executives for their perspectives.

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On how analytics have impacted the job

John Mozeliak, St. Louis Cardinals

“When I first broke in, how you made decisions was basically based on scouting reports and traditional statistics. Now it’s much more analytically driven because of the advanced metrics. If you think about it, in the old days when people would invest in stocks… it’s the same kind of thinking now. The more information you have, the better your decisions are. That’s changed quite a bit over the last 25 years.

“Two things come to mind. One is understanding the longevity of a player. In other words, how long should you be investing in a player? The other thing is prospect evaluation; how much value someone might have, even though they’re still in the minor leagues. When you think back to 20-30 years ago, a lot of times minor league players didn’t have the same type of value that you’re seeing today.

“The economics of baseball have changed drastically. There is more revenue in the game, and higher payrolls, but there is also how you think about moving talent for talent. It’s much more based on economics than just pure ‘I think he’s a good baseball player.’”

Jerry Dipoto, Seattle Mariners Read the rest of this entry »