Archive for Daily Graphings

Reassessing the Future for This Season’s Disappointing Rookies

Isaiah J. Downing-USA TODAY Sports

Projecting the future is always difficult and full of inevitable misses, and I’m not just saying this because I have a vested interest in having you think I’m good at my job. We have a vague idea of a player’s broad future, enough so that nobody would trade Jackson Holliday for, say, Patrick Corbin. However, there’s always a great deal of uncertainty in prognosticating, and assuming for the sake of this opening paragraph that multiverse theory is correct, there will be planes of existence in which Corbin wins the NL Comeback Player of the Year award in 2025 when the Dodgers somehow fix his slider after a five-minute conversation. That’s not the way to bet, of course, and it’s likely that struggling rookies, especially ones with immaculate pre-2024 credentials — such as Holliday — will see this season as a bump in the road rather than a nasty car-destroying pothole.

Turns out, this was the season for longshot Rookie of the Year picks, especially in the American League. Of the top 17 AL rookies based on the preseason Rookie of the Year betting odds, only two players, Colton Cowser and Wilyer Abreu, ever had a plausible argument for being in the conversation once games started. Luis Gil and Austin Wells were nowhere to be found. For the table below, I’ve included 15 of the 17 players who were given AL Rookie of the Year awards odds by DraftKings before the season, sorted by their preseason ranking in descending order, along with their actual 2024 stats. I’m citing these rankings to get a general sense of who the favorites were back in March, not because I think they are more or less accurate than any other sportsbook odds.

(I’ve excluded the two other players, outfielder Everson Pereira and pitcher Ricky Tiedemann, because neither of them have reached the big leagues this season.)

Top AL Rookies Preseason 2024 vs. Actual Performance
Rank (DK) Name G PA HR SB AVG OBP SLG wRC+ WAR
1 Jackson Holliday 51 184 5 4 .170 .223 .298 47 -0.2
2 Evan Carter 45 162 5 2 .188 .272 .361 79 0.1
3 Wyatt Langford 122 503 11 15 .249 .318 .391 100 1.8
4 Junior Caminero 32 133 3 2 .248 .316 .388 101 0.4
5 Colt Keith 138 528 13 7 .263 .313 .385 99 2.0
6 Nolan Schanuel 139 576 13 9 .252 .344 .365 104 0.7
7 Parker Meadows 71 252 8 9 .238 .307 .441 110 1.6
8 Wilyer Abreu 120 405 15 8 .262 .326 .482 120 3.0
9 Colton Cowser 142 518 20 8 .242 .322 .434 116 3.5
10 Heston Kjerstad 29 83 3 1 .254 .361 .408 121 0.2
11 Kyle Manzardo 43 126 3 0 .229 .270 .407 89 -0.1
12 Jasson Domínguez 6 23 0 2 .150 .261 .150 28 -0.1
13 Coby Mayo 15 40 0 0 .086 .200 .086 -6 -0.5
16 Brooks Lee 40 155 3 3 .229 .271 .333 68 0.1
17 Ceddanne Rafaela 143 539 15 19 .250 .277 .398 82 0.9

Only six of these 17 players played even a half-season’s worth of games in the majors. It’s not just sportsbooks and bettors that got it wrong; by the time voting is official, we will have gone 0-for-25 here at FanGraphs.

I’ve done the same thing for the 19 NL players who were given preseason Rookie of the Year odds, with one table for hitters and another for pitchers. (All of the AL rookies who received preseason odds and actually played in 2024 are position players.) Things went significantly better for senior-circuit rookies.

Top NL Rookies Preseason 2024 vs. Actual Performance (Hitters)
Rank (DK) Name G PA HR SB AVG OBP SLG wRC+ WAR
2 Jung Hoo Lee 37 158 2 2 .262 .310 .331 84 0.2
3 Jackson Chourio 136 527 21 20 .273 .329 .474 121 3.7
4 Jackson Merrill 146 555 24 16 .290 .322 .504 130 4.7
6 Michael Busch 141 531 20 2 .255 .337 .450 121 2.5
9 Masyn Winn 139 586 13 11 .271 .317 .408 103 3.2
13 Hunter Goodman 64 202 12 1 .190 .233 .418 63 -1.1
14 James Wood 67 284 7 13 .273 .363 .426 123 1.2
16 Tyler Black 18 57 0 3 .204 .316 .245 68 -0.1
17 Pete Crow-Armstrong 111 365 10 27 .242 .292 .408 94 2.7
18 Dylan Crews 19 81 3 8 .216 .272 .378 80 0.3

Top NL Rookies Preseason 2024 vs. Actual Performance (Pitchers)
Rank (DK) Name G GS IP K/9 BB/9 HR/9 ERA FIP WAR
1 Yoshinobu Yamamoto 16 16 82.0 10.43 2.09 0.66 2.63 2.54 2.7
5 Shota Imanaga 28 28 166.3 9.20 1.52 1.46 3.03 3.80 2.8
7 Kyle Harrison 24 24 124.3 8.54 3.04 1.30 4.56 4.34 0.8
8 Paul Skenes 21 21 126.0 11.29 2.29 0.71 2.07 2.58 3.9
10 DL Hall 9 7 36.7 9.33 4.91 1.23 4.91 4.83 0.2
11 Max Meyer 11 11 57.0 7.26 3.00 2.21 5.68 5.91 -0.3
15 Yuki Matsui 61 0 61.0 9.74 3.84 1.18 3.84 3.99 0.3
19 AJ Smith-Shawver 1 1 4.3 8.31 4.15 0.00 0.00 2.71 0.2

So, what’s next for the rookies who are out of the awards picture? To get an idea of the change in their futures, I re-ran their projections for the next five years to compare to what their outlooks were during the preseason, using data as of Tuesday morning. I left out the players who have at least two WAR in 2024, as well as Matsui, who is a reliever and performed right in line with expectations, giving us a group of 21. In the interests of full disclosure, I am a National League Rookie of the Year voter this year, so I will not express any of my personal feelings regarding who should win that award.

ZiPS Projections, Preseason vs. Today
Player 2025 WAR Preseason Chg 2025-2029 WAR Preseason Chg
Evan Carter 1.7 2.6 -0.9 9.7 15.2 -5.5
DL Hall 0.8 1.6 -0.8 5.4 9.8 -4.4
Jasson Domínguez 1.0 1.7 -0.7 7.3 11.4 -4.1
Wyatt Langford 2.6 3.1 -0.5 14.9 17.2 -2.3
Hunter Goodman 0.4 0.7 -0.3 2.7 4.9 -2.2
Nolan Schanuel 1.4 1.9 -0.5 9.0 10.4 -1.4
Max Meyer 1.3 1.5 -0.2 7.0 8.2 -1.2
AJ Smith-Shawver 1.3 1.5 -0.2 8.8 9.8 -1.0
Jung Hoo Lee 2.2 2.6 -0.4 11.1 12.0 -0.9
Kyle Harrison 1.5 1.7 -0.2 9.2 9.9 -0.7
Jackson Holliday 3.5 3.6 -0.1 20.7 21.3 -0.6
Ceddanne Rafaela 2.1 2.2 -0.1 13.0 13.3 -0.3
Coby Mayo 2.6 2.6 0.0 17.2 17.0 0.2
Tyler Black 2.0 1.9 0.1 10.5 10.2 0.3
Brooks Lee 1.8 1.7 0.1 10.5 9.8 0.7
Junior Caminero 1.3 1.0 0.3 9.0 7.8 1.2
Parker Meadows 2.3 1.7 0.6 11.5 9.4 2.1
Kyle Manzardo 1.9 1.5 0.4 11.5 8.4 3.1
James Wood 2.5 1.7 0.8 16.1 12.6 3.5
Heston Kjerstad 1.9 1.3 0.6 8.8 5.2 3.6
Dylan Crews 2.2 0.5 1.7 13.6 2.8 10.8

In the projections, Evan Carter took the biggest hit. With a rather short, walk-heavy pedigree, ZiPS already saw him as riskier than the other top projected rookies, and then he had a rough early-season performance and a back injury that ruined his 2024. Taking all of this into account, ZiPS drops his 2025 line to .244/.338/.399; with a decent glove, that’s enough to be an average corner outfielder in this offensive environment, but well short of his preseason .259/.358/.412 projection. Carter’s teammate, Wyatt Langford, was a source of much projection disagreement entering the season, with Steamer and ZiPS quite excited, and THE BAT being rather meh about the situation. So far, meh has been closer, though he has hit much better (.258/.326/.424 in 91 games) since returning from an injury in late May.

Jasson Domínguez mainly makes this list for two reasons, more time on the injured list, causing ZiPS to take a foggier view of his health, and the fact that he didn’t have the major breakout yet, which is one of the things that ZiPS was banking on for him. His performance in Triple-A was good, but minor league offense is still crazy; ZiPS has his minor league translation at .263/.320/411, compared to his actual .309/.368/.480 line. That said, Domínguez should be starting every day for the Yankees over Alex Verdugo.

ZiPS is definitely bearish on Nolan Schanuel, and it’s increasingly confident that he won’t develop enough power, or enough secondary skills to compensate for his lack of power, to be a real plus at first base. The projections never bought into Hunter Goodman; he hit even worse than expected this year, and is not particularly young. I’m actually surprised DL Hall didn’t take an even bigger hit; back in a starting role, the walks came back with a vengeance, to the extent that returning to the bullpen for good might be the far better fit for him now.

Jackson Holliday’s numbers didn’t take a big hit for a few reasons. First, and most importantly, despite a really lousy debut in the majors, he played well enough in the minors — plus he’s so young and his résumé is so strong — that his small-sample struggles barely register. By reverse-o-fying Holliday’s major league woes into an untranslated minor league line and including it in his overall Triple-A production, ZiPS estimates that he would’ve had a 118 wRC+ in Triple-A this season, down from his actual mark of 142. A 20-year-old shortstop with a 118 wRC+ in Triple-A would still top everybody’s prospect list.

Several of these players simply didn’t get enough playing time to make a real impression. Coby Mayo and Heston Kjerstad never really had significant chances to grab starting roles with the Orioles this year, and James Wood and Dylan Crews were both midseason call-ups. Even so, the two Nationals rookies received some of the biggest bumps in their new projections. For Crews, the improvement was massive, largely because ZiPS has very little to go on and didn’t translate his college numbers as positively as Wyatt Langford’s, meaning that with a good first impression, Crews had a lot of room to grow in the eyes of ZiPS. Wood added nearly 200 points of OPS at Triple-A from his previous season — a combined .874 mark between High- and Double-A — at the time of his call-up; it was such a drastic improvement that if I had re-done the ZiPS Top 100 prospect list then, he would have come out on top.

None of these 21 players is in contention for the Rookie of the Year awards that will be announced in a few months. But for most of them, the lack of hardware in 2024 doesn’t represent a setback that changes their future outlooks too much.


Byron Buxton and Carlos Correa Are Back, but the Twins Are Barely Hanging On

Kamil Krzaczynski-USA TODAY Sports

The Twins still have a hold on the third AL Wild Card spot — for the moment. After blowing a 3-0 lead against the Guardians in Monday’s series opener in Cleveland, they’ve lost 18 of their past 27 games. They haven’t won a series against a team with a winning percentage of .500 or better in over a month, and now lead the surging Tigers by just a game and a half in the Wild Card standings. This past weekend, Minnesota activated both Byron Buxton and Carlos Correa from the injured list following lengthy absences, but the two stars by all accounts are playing at less than 100 percent, and sadly for manager Rocco Baldelli, they aren’t likely to provide innings out of the bullpen when they’re not in the lineup.

As of August 17, the Twins were 70-53, a season-high 17 games above .500. At the time, they were running second in the AL Central, two games behind the Guardians, and second in the Wild Card race, a game and a half behind the Orioles but two games ahead of the Royals, from whom they’d just taken two out of three (that aforementioned last series victory against a winning team). Since then, the Twins have gone just 9-18 (.333), outdoing only the White Sox (5-21, .192) and Angels (7-19, .269) among all major league teams; even the worst NL team in that span, the Marlins, has gone 10-17 (.370). The slump has pretty much closed the door on Minnesota’s chances of claiming the AL Central, and meanwhile, the Tigers have gone 17-9, tied for the majors’ best record in that span, to poke their noses into the Wild Card picture.

Twins Change in Playoff Odds
Date W L W% Div GB WC GB Div Bye WC Playoffs Win WS
August 17 70 53 .569 2 +5* 36.8% 33.9% 55.6% 92.4% 6.4%
September 17 79 71 .527 7.5 +1.5* 0.2% 0.1% 76.6% 76.7% 3.2%
Change 9 18 .333 -36.6% -33.8% +21.0% -15.7% -3.2%
* = lead over top non-Wild Card team.

During this slide, the Twins have lost series to the Padres, Cardinals, Braves, Royals, and Reds, splitting one with the Rays, and beating only the Blue Jays and Angels — not exactly a performance befitting a playoff-bound team. In that span, the offense has scored just 3.81 runs per game while the pitching staff has allowed 5.22 per game. It’s not what you want. Read the rest of this entry »


Would Francisco Lindor Be More Valuable to the Dodgers Than Shohei Ohtani?

Brett Davis-Imagn Images, Wendell Cruz-Imagn Images

Heading into the year, everyone thought this would be the season that Shohei Ohtani, rehabbing from elbow surgery and DHing only, stepped aside and yielded MVP to someone else before resuming his place as the de facto favorite for the award in 2025. Instead, Ohtani decided to make a run at the first ever 50-homer, 50-steal season. The other primary competitor for NL MVP is Francisco Lindor, who isn’t chasing any statistical milestones and plays for a team whose most interesting narratives involve an amorphous fast food mascot, the musical endeavors of a part-time utility infielder, and the failure to extend Pete Alonso. And yet, Lindor’s position atop the NL WAR leaderboard demands consideration.

The marginal difference between Lindor and Ohtani’s WAR totals (7.4 and 7.0, respectively, at the time of this writing) creates a virtual tie to be broken based on the personal convictions of voters and anyone else with an opinion and an internet connection. For most, the choice between the two distills down to whether Ohtani’s 50/50 chase overrides his DH-only status. I’m not here to disparage Ohtani for not playing defense, but if you find that disqualifying for MVP recognition, I feel that. Then again, WAR includes a positional adjustment that does ding Ohtani with a significant deduction for not taking the field, and he’s still been keeping pace with Lindor on the value front anyway, so there’s not much more analysis to do there.

Instead, I want to explore how Ohtani’s one-dimensional role interacts with the value of a roster spot and the limitations that it places on how Los Angeles constructs and deploys the rest of its roster. In a two-way Ohtani season, he brings tremendous value to an individual roster spot as a frontline starter and an elite hitter who takes 600 or so plate appearances. But this year he contributes only as an offensive player. Read the rest of this entry »


Top of the Order: Previewing the Option Decisions for NL Teams and Players

Patrick Gorski-USA TODAY Sports

Welcome back to Top of the Order, where every Tuesday and Friday I’ll be starting your baseball day with some news, notes, and thoughts about the game we love.

After taking a look at the qualifying offer decisions that have to be made shortly after the conclusion of the World Series, I figured now would be as good a time as any to run down the team and player option decisions. We’ll start with the National League, with the American League following on Friday. Here’s what’s on the table. Read the rest of this entry »


FanGraphs Power Rankings: September 9–15

With just two weeks left in the regular season, the two Wild Card races look like they’ll be the only source of drama down the stretch. Entering this week, the top team in the closest divisional race has an 87.8% chance to finish in first — that’s the most uncertain winner, according to our playoff odds.

This season, we’ve revamped our power rankings. The old model wasn’t very reactive to the ups and downs of any given team’s performance throughout the season, and by September, it was giving far too much weight to a team’s full body of work without taking into account how the club had changed, improved, or declined since March. That’s why we’ve decided to build our power rankings model using a modified Elo rating system. If you’re familiar with chess rankings or FiveThirtyEight’s defunct sports section, you’ll know that Elo is an elegant solution that measures teams’ relative strength and is very reactive to recent performance.

To avoid overweighting recent results during the season, we weigh each team’s raw Elo rank using our coin flip playoff odds (specifically, we regress the playoff odds by 50% and weigh those against the raw Elo ranking, increasing in weight as the season progresses to a maximum of 25%). As the best and worst teams sort themselves out throughout the season, they’ll filter to the top and bottom of the rankings, while the exercise will remain reactive to hot streaks or cold snaps. Read the rest of this entry »


Eugenio Suárez’s Extended Hot Streak Continues to Drive the Diamondbacks

Eric Canha-USA TODAY Sports

The Diamondbacks won a wild game against the Brewers at Chase Field on Sunday, one in which they built and then squandered a 5-0 lead, overcame an 8-5 deficit to send the game to extra innings, fell behind 10-8 in the 10th inning, and finally, won in walk-off fashion, 11-10. Eugenio Suárez was at the center of much of the excitement. The 33-year-old third baseman drove in the game’s first run, and later plated both the tying and winning runs as well. It was the latest stellar performance of the player who’s been the NL’s hottest hitter since the beginning of July, digging his way out of an early-season slump.

Suárez began his Sunday afternoon by slapping a one-out RBI single off DL Hall through the right side of the infield, bringing home the first of three runs that the Diamondbacks scored in that frame. Facing Hall again, he struck out in the third before Arizona mounted a two-out, two-run rally that extended its lead to 5-0. Suárez grounded out against Joe Ross to end the fourth, and struck out again, against Aaron Ashby, to end the sixth, by which point the Brewers had pulled ahead 7-5 after chasing Zac Gallen and roughing up reliever Kevin Ginkel.

After the Diamondbacks scored two runs to cut the lead to 8-7 in the seventh, Suárez hit a sacrifice fly that brought home Corbin Carroll — who had walked, stolen second, and taken third on a wild pitch — in the eighth. Milwaukee scored two in the top of the 10th, but in the bottom of the frame, four straight Diamondbacks reached base, via three singles and a hit-by-pitch, before Suárez swatted a towering 100.5-mph fly ball that bounced off the right-center field wall, driving home Ketel Marte with the winning run. Read the rest of this entry »


Sunday Notes: RoY Candidate Colton Cowser Contemplates Contact

Colton Cowser is a leading contender for American League Rookie of the Year honors, and his power numbers are among the reasons why. The 24-year-old Baltimore Orioles outfielder has 20 home runs to go with a .240/.321/.431 slash line and a 115 wRC+. San Diego’s Jackson Merrill (23) is the only rookie in either league to have left the yard more times.

That Cowser is clearing fences with some regularity is in many ways unsurprising. At a listed 6-foot-2, 220 pounds, his build is that of a basher. That said, his profile going forward wasn’t entirely clear when he was first featured here at FanGraphs in February 2022. Drafted fifth overall the previous summer out of Sam Houston State University, Cowser had propelled just a pair of baseballs over outfield barriers in 149 low-level plate appearances. Moreover, as I related to him in our offseason conversation, Baseball America had recently cited his “impressive walk-to-strikeout ratio,” adding that his swing path is “presently more geared toward contact versus power.”

The numbers suggest that Cowser is no longer the same style of hitter. After having more free passes than Ks in college and in his first taste of professional action, the left-handed-swinging slugger has fanned a team-worst 157 times this season with a 30.5% strikeout rate and a 9.5% walk rate. He’s also hitting more balls in the air, as evidenced by his 38.2 FB%. That number was just 26.9 in his two-plus years down on the farm.

Cowser’s thoughts on making less contact as he settles in to what promises to be a productive MLB career? Read the rest of this entry »


Sophomore Slumps Aren’t a Thing

Denis Poroy-Imagn Images

Even in an age in which baseball – and most sports to an extent – has become an extremely data-driven enterprise, the stew of conventional wisdom, mythology, and storylines could still feed a pretty large family. That’s not to say that this is a bad thing; even an old, jaded stat nerd like me gets excited to enjoy such a stew from time to time. But at the end of the day, an analyst has to focus on what’s true and what is not, and very few bits of baseball orthodoxy are more persistent than that of the sophomore slump. Coined for underperforming second-year high school or college athletes, the meaning in baseball is roughly parallel it: After a successful rookie season, a player finds it difficult to maintain the performance from their debut and are weighed down by the greatly increased expectations. As an analyst, the inevitable follow-up question is whether the sophomore slump is actually real.

While I entered this article with some rather developed skepticism, there’s no denying that high-performing rookies do occasionally have pretty wretched follow-up campaigns. Every longtime baseball fan can probably rattle off a dozen or so names instantly after reading the title of the article. For me, visions of Joe Charboneau, Pat Listach, Mark Fidrych, Jerome Walton, and Chris Coghlan dance in my head. And the list goes on and on. However, a second-year skid doesn’t mean there’s a special effect that causes it. The fact of the matter is that you should expect a lot of regression toward the mean for any player in baseball who can be optioned freely to the minors. The way baseball’s minor league system works accentuates the selection bias; underperforming rookies are typically demoted while the ones crushing reasonable expectations get to stay.

Looking at the sophomore slumpers, the story is typically more complicated than the cautionary tale. ZiPS has minor league translations going back to 1950 at this point, and while Super Joe (Charboneau) hit very well in the season before his debut (.352/.422/.597 for Double-A Chattanooga), at 24, he wasn’t young for the level, and ZiPS takes enough air out of that line to drop his translated OPS below .800. ZiPS thought he’d be an OK lefty-masher, but not much more than that.

ZiPS Projection – Joe Charboneau
Year BA OBP SLG AB R H 2B 3B HR RBI BB SO SB OPS+ WAR
1980 .290 .350 .454 449 74 130 26 3 14 66 41 69 4 118 1.5
1981 .276 .335 .421 463 72 128 25 3 12 63 40 71 3 119 1.8
1982 .284 .348 .456 465 76 132 29 3 15 64 45 72 3 119 1.8
1983 .296 .360 .481 466 79 138 31 2 17 69 46 68 3 124 1.9
1984 .297 .361 .461 462 79 137 27 2 15 71 46 72 3 124 1.7
1985 .273 .337 .429 443 69 121 26 2 13 62 42 72 3 109 1.4
1986 .275 .342 .443 411 66 113 23 2 14 67 42 72 2 114 1.2
1987 .290 .359 .483 373 63 108 23 2 15 56 40 70 2 118 1.1
1988 .268 .334 .406 355 53 95 20 1 9 42 35 62 2 102 0.6
1989 .274 .341 .398 299 44 82 17 1 6 32 30 54 1 106 0.5
1990 .269 .336 .408 238 35 64 13 1 6 32 24 44 1 108 0.3
1991 .267 .330 .390 172 23 46 10 1 3 16 16 31 1 98 0.1

Charboneau had a solid offensive rookie season, winning the AL Rookie of the Year award, but in his case, the fates didn’t really give him a fair opportunity to repeat that season. He injured his back in spring training and played through the injury, as was the style of the time. Across a couple of stints in the majors after his rookie breakout, he combined to bat .210/.247/.362 over 147 at-bats, and he was never healthy or trusted enough to make good. He didn’t hit again in the minors, either, with the only exception a walk-heavy .791 OPS as a 29-year-old in A-Ball (!).

As quick as Charboneau’s fall from grace was, it was far from the biggest rookie WAR drop-off. Using the definition of rookie in our leaderboards, which doesn’t know about roster service time days but is suitable for the approach of identifying rookies rather than specific Rookie of the Year eligibility, here are the biggest sophomore slides by WAR since 1901.

Worst Sophomore Skids – Hitters Since 1901
Player Rookie Year Rookie WAR Sophomore WAR Diff
Coco Laboy 1969 2.63 -2.83 -5.46
Mike Aviles 2008 4.35 -0.92 -5.27
Danny Santana 2014 3.90 -1.34 -5.24
Marlon Byrd 2003 3.61 -1.46 -5.08
Dots Miller 1909 4.80 -0.06 -4.86
Miguel Andujar 2018 3.87 -0.92 -4.79
Troy Tulowitzki 2007 5.18 0.46 -4.72
Nolan Jones 2023 3.74 -0.89 -4.63
Mitchell Page 1977 6.24 1.86 -4.38
Chris Sabo 1988 4.77 0.39 -4.38
Mike Caruso 1998 1.68 -2.70 -4.38
Bernie Carbo 1970 5.64 1.36 -4.28
Red Barnes 1928 3.32 -0.95 -4.26
James Outman 2023 3.95 -0.27 -4.21
Chris Singleton 1999 4.62 0.41 -4.21
Walt Dropo 1950 3.25 -0.82 -4.07
Chet Ross 1940 3.62 -0.40 -4.03
Austin Kearns 2002 4.96 0.95 -4.00
Hal Trosky Sr. 1934 5.39 1.42 -3.97
Del Bissonette 1928 4.71 0.78 -3.94
Bobby Byrne 1907 2.75 -1.16 -3.91
Stan Rojek 1948 3.68 -0.21 -3.89
Freddie Maguire 1928 2.30 -1.58 -3.88
Carlos Beltrán 1999 4.27 0.44 -3.83
Milt Cuyler 1991 3.30 -0.52 -3.82

Worst Sophomore Skids – Pitchers Since 1901
Player Rookie Year Rookie WAR Sophomore WAR Diff
Jim Archer 1961 4.90 -0.53 -5.43
Mark Langston 1984 4.37 -0.66 -5.03
Kerry Wood 1998 4.39 0.00 -4.39
Mark Eichhorn 1986 4.94 0.80 -4.15
Rick Ankiel 2000 3.43 -0.56 -3.99
Brian Matusz 2010 2.79 -1.13 -3.92
Horace Lisenbee 1927 3.99 0.08 -3.92
Charles Wensloff 1943 3.88 0.00 -3.88
Bobby Miller 2023 2.85 -0.95 -3.80
Johnny Beazley 1942 3.77 0.00 -3.77
Michael Soroka 2019 4.01 0.26 -3.76
Marino Pieretti 1945 2.25 -1.48 -3.73
Francisco Liriano 2006 3.62 0.00 -3.62
Lucas Harrell 2012 2.70 -0.86 -3.57
Michael Pineda 2011 3.52 0.00 -3.52
Roger Erickson 1978 3.90 0.40 -3.50
Edinson Volquez 2008 3.67 0.21 -3.45
Stan Bahnsen 1968 4.41 0.97 -3.44
Trevor Rogers 2021 4.26 0.88 -3.38
Mike Fiers 2012 2.75 -0.62 -3.38
Gustavo Chacin 2005 2.93 -0.42 -3.35
Wilcy Moore 1927 2.87 -0.48 -3.35
Leon Cadore 1917 3.65 0.31 -3.34
Steve Sparks 1995 2.44 -0.88 -3.32
Joe McClain 1961 2.57 -0.75 -3.32

Some of these players recovered to have solid major league careers and some of these slumps resulted from serious injury, such as Kerry Wood’s, but for some of the players, that was the end of the road for them in the big leagues. As for Super Joe, his skid was the 100th worst in history among hitters!

So, how do we extract a sophomore-slump effect from simple sophomore slumps? At this point, I’ve been running projections for two decades, so I have a decent-sized database of projections calculated contemporaneously (as opposed to backfilling before ZiPS existed). I certainly haven’t told ZiPS to give a special penalty to solid rookies having bad follow-up campaigns, so I went back and looked at the projections vs. realities for every hitter with a two-WAR rookie season and every pitcher who eclipsed 1.5 WAR. (Rookie pitchers tend to have more trouble grabbing playing time.) That gave me 166 hitters and 207 pitchers. Let’s start with the hitters.

ZiPS Projections – Two-WAR Rookie Hitters
Rookie WAR # Average WAR Average Projection, Next Year Actual Average, Next Year
4.0+ 26 5.13 3.54 3.71
3.0-4.0 44 3.50 2.51 2.30
2.0-3.0 96 2.41 1.79 1.90
All 2.0+ 166 3.12 2.26 2.29

The 26 players in the top bucket averaged 5.1 WAR in their rookie seasons and 3.7 WAR in their sophomore seasons. That’s a pretty significant drop-off, but they were projected for an even steeper decline. The next group — 44 players who accumulated 3-4 WAR as rookies — underperformed its projection by about two runs per player, while the 96 rookies who finished with 2-3 WAR slightly overperformed their projections, but it was very close. As for the entire sample of 166 hitters, ZiPS projected a decline from an average 3.1 WAR as rookies to 2.3 in their sophomore seasons. Their actual average in their second year was… 2.3 WAR. Let’s look at the pitchers.

ZiPS Projections – 1.5-WAR Rookie Pitchers
Rookie WAR # Average WAR Average Projection, Next Year Actual Average, Next Year
3.5+ 17 3.92 2.35 2.51
2.5-3.5 51 2.87 2.10 2.10
1.5-2.5 139 1.91 1.37 1.48
1.5+ 207 2.31 1.63 1.71

This is the same story, with the decline for pitchers being about as predictable as it was for hitters: ZiPS underestimated their second-year WAR by about 0.08 wins on average.

That’s not the end of it, however. I wanted to see if ZiPS has projected a similar decline for players who were coming off their second through fifth seasons, because that would determine whether ZiPS was capturing a sophomore-slump effect or if this was just a more general regression to the mean for players with less major league experience.

Average ZiPS Projection Decline by Service Time for Hitters
Service Time Average Projection Decline
Rookie 0.86
Sophomore 0.88
Third Year 0.73
Fourth Year 0.89
Fifth Year 0.92

Average ZiPS Projection Decline by Service Time for Pitchers
Service Time Average Projection Decline
Rookie 0.68
Sophomore 0.59
Third Year 0.72
Fourth Year 0.63
Fifth Year 0.66

In sum, ZiPS didn’t knock more performance off high-performing rookies than it did for sophomores, juniors, seniors, and guys who stayed a fifth year because they had to drop too many 8 a.m. classes that they slept through. That’s because the sophomore-slump effect doesn’t exist.

So yes, projections will likely project fewer WAR next season from this year’s standout rookies, such as Jackson Merrill, Jackson Chourio, and Masyn Winn. But that dip is likely to be the result of the typical regression toward the mean that any high performer with a limited track record is expected to experience.


I Think Lawrence Butler Is Pretty Good

Raymond Carlin III-USA TODAY Sports

If I’ve learned anything from the new Statcast bat tracking data, it’s that bat speed alone isn’t sufficient to produce a high-quality major league hitter. Johnathan Rodriguez, Trey Cabbage, Zach Dezenzo, Jerar Encarnacion — all of these guys, at this early stage of their major league careers, swing hard but miss harder. Bat speed only matters when you make contact.

When you do hit the ball, however, it’s nice when your swing is as fast as possible. Swinging fast while making good contact most of the time — it’s hard to do, but if you can do it, you’re probably one of the best hitters in baseball.

The reason it’s rare is because these two variables — swinging hard and making solid contact — are negatively correlated. As some probably remember from when these stats originally dropped, Luis Arraez swings the slowest and squares up everything, while Giancarlo Stanton swings the fastest but seldom connects. A slow swing is a more precise swing, and so the group of hitters who can swing precisely while letting it rip are uncommon.

In order to determine who these rare hitters are, it is necessary to select some arbitrary cutoffs. I’ve picked hitters who have roughly 80th percentile bat speeds and 50th percentile squared-up per swing rates. (A “squared-up” swing is one where a hitter maximizes their exit velocity.) Here is the whole list of hitters who average over 74 mph of bat speed and have at least a league-average squared-up rate: Yordan Alvarez, Gunnar Henderson, Manny Machado, William Contreras, Juan Soto, Vladimir Guerrero Jr., and… Lawrence Butler??? Read the rest of this entry »


Leo Jiménez’s ‘The Beaning of Life’

Gerry Angus-USA TODAY Sports

A ballplayer who grabs a bat and steps up to the plate aims to hit. The point of the sport is to go around the bases, and the most efficient way to do that is to put wood on the ball and hope for the best. But it’s far from the only way to go around the bases.

Sometimes you hit the ball, and sometimes the ball hits you. I’ve long been fascinated by players who use their own bodies as a means of advancement, dating back to when I, as a child, read a George Vecsey feature on the single-season hit-by-pitch leader in an old anthology of baseball writing. “Ron Hunt, Loner,” painted a broadly ambivalent portrait of a second baseman with modest physical gifts. But Hunt made two All-Star teams and retired with the same career OBP as Shohei Ohtani, despite playing in the most pitcher-friendly era of the past 100 years.

Those who are able to systematize the hit-by pitch can transform their careers. Read the rest of this entry »