Aaron Nola is having a truly awful season: Through nine starts, he’s 1-7 with a 6.16 ERA, which is bad for any pitcher. For the putative no. 2 starter on a big-market team whose fans are getting pretty tetchy about not having won a World Series in a while, it’s disastrous. Especially when said pitcher is in year two of a seven-year, $172 million contract. In fact, you’d have to say Nola has been surpassed in the pecking order by Cristopher Sánchez at the very least, and possibly by newcomer Jesús Luzardo.

Everyone’s got their theories as to what’s gone wrong. Davy Andrews tried to figure out Nola’s deal last month. Timothy Jackson of Baseball Prospectus speculated earlier this week that there’s something off with his fastball, and that lefty-heavy opposing lineups might be to blame. The Phillies, for their part, just put Nola on the (non-COVID) IL for the first time in almost eight years. The stated reason is an ankle injury Nola says is messing up his mechanics, but a player in a slump this bad can almost always use some time off to clear his head as well. Read the rest of this entry »

The Reds rotation has been an undeniable strength this season. The team’s starters are third in park- and league-adjusted ERA, and their collective peripherals mostly back it up; they’re 10th in park- and league-adjusted FIP. Hunter Greene has been phenomenal, Nick Lodolo has made some key command improvements, and Brady Singer has added a secret ingredient, though his ERA has ballooned to over 5.00 since Michael Baumann wrote about him last month. But the pitcher leading the team in ERA is Andrew Abbott, and before Baumann can write about his third Cincinnati starter this year, I’d like to take a stab at puzzling out what’s gone right for the 25-year-old lefty.

What if I told you that while Abbott’s fastball is coming in about a tick slower than normal and his arm slot is five degrees higher than usual, he has somehow managed to slightly improve the pitch’s Stuff+ score? You might be a bit confused, as the trend for many pitchers has been to try and lower their arm slot in an effort to flatten out their four-seamers. A flatter approach angle often leads to more swings and misses at the top of the zone and weaker contact, as batters have trouble squaring up a pitch that looks like it’s rising above their bat. Abbott has always had a high release point, but his 50 degree arm angle is now the 11th-highest arm slot among qualified left-handed pitchers.

Research into the relationship between a pitcher’s arm slot and the shape of their pitches has shown that as a pitcher’s arm slot rises, they’re able to generate more backspin. More backspin allows them to create more induced vertical break (IVB). Put simply, IVB is a function of arm angle. The other thing about a high arm angle is that purer backspin fastballs tend to cut less horizontally. Abbott has managed something somewhat tricky with his new arm slot:

Despite the higher release angle, Abbott hasn’t experienced a corresponding increase in the amount of carry on his heater. The other odd thing is that he’s been able to maintain the higher-than-normal horizontal break he generates with the pitch. Because he’s now throwing from a higher slot, the pitch has a much steeper approach angle, and the pitch’s cutter-esque shape provides a wider horizontal approach angle.

Abbott’s four-seamer now stands out both because it doesn’t carry as much and because it cuts more than you’d expect. A “dead zone” fastball describes a pitch with unspectacular movement traits — a fastball that moves as expected. Research has shown that a fastball’s dead zone is a function of the pitcher’s arm angle, leading to the concept of a dynamic dead zone (DDZ). Using Alex Chamberlain’s calculated DDZ deltas (based on work done by Max Bay), we can see just how much Abbott’s fastball falls outside of what the batter expects based on his arm slot:

Remember, magnitude is what matters when evaluating a pitcher’s DDZ, so Abbott’s negative vertical dead zone delta isn’t necessarily a bad thing, though his +2.8 horizontal dead zone delta is very much a good thing.

The results have been positive so far. His whiff rate on the pitch has improved from just over 19% during his first two seasons to 25.2% this year. The additional swings and misses are nice, but he’s also turned his heater into a contact-suppression monster. Just look at some of these key contact metrics from Statcast:

Abbott’s expected wOBA on contact when he throws his fastball is just .297, 17th among the 248 pitchers who have thrown at least 100 four-seamers this year. The hard-hit and barrel rates against the pitch are miniscule. The most impressive aspect of his contact management comes from Statcast’s new bat tracking data. Opposing batters produce the second-highest average bat speed in baseball against Abbott’s fastball, but they “square-up” the pitch at the third-lowest rate on a per swing basis and they produce a “blast” against his heater at the fourth-lowest rate in baseball. In other words, batters really gear up when they see Abbott’s fastball because their eyes are telling them that the pitch is very hittable, but they simply cannot make solid contact against it.

To connect this all back to the pitch’s shape, I expect that this contact suppression is all linked to the amount of horizontal break Abbott generates with his fastball. With his high arm slot, a batter expects to see a straight four-seamer with tons of carry. Instead, they’re presented with a cutting fastball that doesn’t have as much carry as you’d expect. Rather than swing completely under the pitch like they might if it had a ton of carry, they’ll often put it in play, but it’s weak contact because the pitch doesn’t come in where they expect it to horizontally. So much of the contact he generates with the pitch is off the end of the bat or in on the handle, leading to weak fly balls and popups.

Of course, location matters, too. In the first table above, I included average vertical location, because location is a critical component of vertical approach angle. Abbott is locating his fastball much lower in the strike zone this year, which, along with his higher arm slot, has contributed to his steeper approach angle. He’s also been very consistent with his location on the outer half of the plate to right-handed batters:

Because the horizontal break on the pitch causes it to tail away from righties, his location is perfect for inducing weak contact off the end of the bat while avoiding the barrel if it ends up over the heart of the plate.

In case you were worried about Abbott’s dip in velocity, I’m happy to report that his heater has had a bit more zip during his last few starts:

A shoulder injury last August cut short his 2024 season, and he entered spring training a little bit behind schedule because of it. I suspect that he was still ramping up during his first few starts of the season and that his velocity will be back to normal moving forward.

Beyond his fastball and the new arm slot, there’s one key change to the rest of Abbott’s repertoire that could be contributing to his success. He’s getting about three more inches of drop on his changeup while still maintaining the pitch’s above-average horizontal break. The whiff rate on that pitch has improved by about four points, and the expected wOBA against it is just .222. More importantly, the change in shape has allowed him to differentiate the pitch from his fastball a bit more:

Please excuse the color differences from year to year in the plots above. In Abbott’s pitch plot from 2024 on the left, his changeup (the black blob) somewhat overlaps with his fastball (the blue blob). In 2025, on the right, his offspeed pitch (the green blog) is wholly distinct from his heater (the blue blob).

Abbott briefly discussed the evolution of the pitch with Charlie Goldsmith of the Dayton Daily News in late April:

It’s come a long way. I talked with Nick Martinez and a bunch of the guys about how to throw it, grips and all of that stuff. It’s finally coming around. It’s not to where I think it can be yet, but it’s gotten a lot more consistent.

He has increased his use of his changeup from 16.3% last year to 21.3% this year, and it has proven to be a potent weapon against right-handed batters.

With a new arm slot, a deceptive fastball, and an improved changeup in hand, Abbott has truly elevated his arsenal. His walk rate is a little high right now, but his strikeout rate is 30.3%, and the contact suppression improvements he’s made to his heater have almost entirely negated those additional free passes. The top-line results certainly speak for themselves: Abbott has allowed more than one run in just one of his starts this year, and that happened to be the only start in which he’s allowed more than four hits. As long as batters are unable to square up his fastball, we could be seeing a significant step forward from the young lefty.

Below is an analysis of the prospects in the farm system of the Cleveland Guardians. 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 »

Back in the halcyon days of 2021, things were looking up for Robbie Ray. After a promising but inconsistent start to his career, he put everything together all at once and won a Cy Young award. He hit free agency on the back of that season and signed a deal that guaranteed him five times what he’d made in the majors so far. The future was bright – except that Ray turned around and put up a miserable 2022 campaign, meaningfully worse across the board despite pitching in Seattle, where trained squirrels can go six innings and give up two runs in the pitcher-friendliest ballpark in the big leagues. Then he got hurt. And later got traded as salary ballast. Life comes at you fast.

Ray would hardly be the first pitcher to spike some hardware in a weak year — only six AL pitchers reached 4 WAR in 2021; Ray wasn’t one of them — and then fade away. Rick Porcello says hi, by the way. If Ray’s last act was keeping replacement-level time on the Giants, at least he got his one big payday. Expectations weren’t high, and when he was shut down with an injury only a month after returning in the second half of last year, they fell further still.

Of course, I’m writing this article, so you know that hasn’t continued. Rather than teeter into irrelevance, Ray has come out strong to start 2025. He looks as good as he has since his award-winning season – and arguably even better. So let’s look at how he’s doing it now, because whether you’re a long-time Ray-head or just seeing the first Rays of light this year, he’s a strange enough – and fun enough – pitcher to be worth taking notice of. Read the rest of this entry »

When we last checked in on the Twins, they had stumbled out of the gate, losing eight of their first 12 games — a start that looked particularly dismal given last September’s collapse, which cost them a playoff berth. But times have changed, with the offense heating up and the pitching staff emerging as one of the league’s stingiest. Thanks to a just-ended 13-game winning streak, the Twins now own the American League’s fourth-best record (26-21, .553), though injuries to players such as Byron Buxton and Carlos Correa threaten to stall their momentum.

On May 3, the Twins beat the Red Sox 4-3 in Boston, ending a four-game losing streak that had dropped them to 13-20 and had included two walk-off wins by the Guardians. They beat the Red Sox to close out a road trip, then went home and pulled off three-game sweeps of the Orioles and Giants, punctuated by a 10th-inning walk-off victory. Back on the road, they swept three from the hapless Orioles in Baltimore before taking the first two from the Brewers in Milwaukee, running their record to 26-20. On Sunday, they finally lost again, falling to the Brewers 5-2.

The final three wins of the Twins’ streak were all shutouts, starting with a 4-0 blanking of the Orioles by starter Chris Paddack and two relievers on Thursday, continuing with a 3-0 whitewashing of the Brewers behind Joe Ryan and three relievers on Friday, and concluding with a 7-0 drubbing of Milwaukee highlighted by the work of Pablo López and three relievers on Saturday. In all, the Twins shut out their opponents for 34 consecutive innings (the longest since the franchise moved to Minnesota in 1961), beginning with the fourth inning of Wednesday night’s game, after the Orioles had scored six runs; they extended that streak until the second inning on Sunday. Read the rest of this entry »

“The reason the Royals are so far down this list is that they don’t have an obvious back of the rotation yet.” That’s what Ben Clemens wrote when the Royals turned up at no. 13 on our Positional Power Rankings back in March. Until Saturday, the lack of depth hadn’t held them back at all. Their five starters, Seth Lugo, Cole Ragans, Michael Wacha, Michael Lorenzen, and Kris Bubic, had started 45 of the team’s 46 games. As Michael Baumann wrote last week, Bubic, the biggest question mark of the bunch, has instead pitched like an exclamation point. After taking a no-hit bid into the seventh inning in San Francisco last night, he’s 5-2 with a 1.47 ERA and 2.72 FIP. Put it all together, and the Kansas City starters have a 2.93 ERA and 3.45 FIP, good for the third- and fourth-best marks in baseball, respectively. But that depth is finally going to be tested. On Saturday, the Royals announced that they’d sent both Lugo and Ragans to the injured list.

Lugo and Ragans, who respectively finished second and fourth in the AL Cy Young voting in 2024, have been on opposite sides of the process-results spectrum thus far this season. Lugo is rocking a 3.02 ERA with a 4.52 FIP, while Ragans has a 4.53 ERA and a 1.99 FIP. The good news is that neither injury sounds too serious (with the obvious caveat that because they’re pitchers, either player could spontaneously combust at any moment). Both had been dealing with nagging injuries in recent weeks and seemed to reach the point where it was time to back off rather than risk something more serious. Read the rest of this entry »

Austin Riley was relatively raw when our 2017 Atlanta Braves Top Prospects list was published in February of that year. Six weeks short of his 20th birthday, he was coming off of a Low-A season in which he logged 20 home runs and a 124 wRC+, but also fanned 147 times. With lingering concerns about both his contact profile and conditioning, Eric Longenhagen conservatively ranked Riley no. 28 in a then-strong Atlanta system.

Riley has obviously gone on to have a highly successful career. Since debuting with the Braves in May 2019, Riley has put up a 124 wRC+ and 19.9 WAR across parts of seven seasons, slugged 30-plus homers in three different years, and made a pair of All-Star teams. A mainstay in the middle of Atlanta’s lineup, the 41st-overall pick in the 2015 draft out Southaven, Mississippi’s DeSoto Central High School has developed into one of the senior circuit’s top sluggers.

What did Riley’s 2017 FanGraphs scouting report look like? Moreover, what does he think about it all these years later? Wanting to find out I shared some of what our lead prospect analyst wrote and asked Riley to respond to it.

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“Riley began the year struggling with any sort of velocity and then improved the timing of his footwork, quieted his hands and started hitting. Late in the year, he was turning on plus velocity.”

“Very accurate,” Riley said. “Coming out of high school, I hadn’t seen velo a lot, and I kind of had a lot going on with my swing. I needed to make some adjustments. Being a bigger guy, a power guy, it was kind of, ‘All I have to do is touch the ball, get a barrel to the ball.’ It was one of my first steps in learning how to shorten everything up and just get a barrel to it. From there, good things happen.”

“He has plus raw power (at least) and has improved his body composition since high school (when he was a heavy 230). But at just 19, with some general stiffness to his actions, Riley is pretty likely to kick over to first base as he matures.” Read the rest of this entry »

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:

Read the rest of this entry »

The Braves have limped through the first seven weeks of the season at far less than full strength, particularly within their outfield, where they lost Jurickson Profar to an 80-game PED suspension and have taken a very slow and deliberate approach to Ronald Acuña Jr.’s rehabilitation from his second anterior cruciate ligament repair surgery in three years. That outfield has ranked among the majors’ least productive, offset only by the emergence of Eli White. But at least help is on the horizon. Acuña’s rehab stint is finally underway, and he could return to the Atlanta lineup as soon as this weekend.

Acuña tore his left ACL on May 26, 2024 and underwent surgery to repair it on June 4. When he returned from his 2021 tear of his right ACL nine months and one week after surgery, he did not play up to his usual standard in ’22. The Braves resolved to take his rehab more slowly this time around, resisting the urge to accelerate his timeline even with Acuña reportedly hitting 450-foot bombs in batting practice early in spring training, and even with the team stumbling out of the gate by losing its first seven games and 13 of its first 18. The 27-year-old slugger finally returned to action last Tuesday with the Braves’ Florida Complex League affiliate, homering off Kevin Velasco, a 19-year-old righty on the Orioles’ FCL squad:

.@ronaldacunajr24 goes yard in his first rehab start! pic.twitter.com/e5ZFhb9jSF

— Atlanta Braves (@Braves) May 13, 2025

Acuña then moved up to Triple-A Gwinnett, where he went 3-for-6 with a homer and six walks in three games against the Charlotte Knights, affiliate of the White Sox, from Thursday through Saturday. The homer, a 102-mph, 420-footer to dead center, was hit off 25-year-old lefty Tyler Schweitzer. Read the rest of this entry »

Before Game 2 of last year’s AL Wild Card Series, I asked Brandon Hyde a kind of stupid question. The Orioles, having been swept in the ALDS the year before, found themselves down 1-0 to the Royals in the series and were facing another rapid postseason elimination. The Orioles’ rebuild had gone on so long, and developed so much talent, that their progression to World Series contention had been assumed.

Hyde, the rare manager who’d survived a 100-loss tanking season through to the playoffs, had yet to win even one postseason game. So I mentioned that in other sports, coaches in his position have levers to pull in such desperate times. Was there anything a baseball manager has up his sleeve in a must-win game?

“I’m planning a spot to onside kick, try to get the ball back as quick as I possibly can in good field position,” Hyde joked in response. “Or I’m going to try to be like UNLV back in the early ’90s with Stacey Augmon and Larry Johnson, and try to get up and down the court as fast as possible. Besides that, I’m going to use my relievers as best I possibly can, try to put some zeroes up and try to score some runs.” Read the rest of this entry »