A couple of weeks ago, Hannah Keyser of The Bandwagon asked Kodai Senga about his reverse splits when it comes to times through the order. His .347 wOBA allowed the first time through the lineup drops to .275 the second time through it, and then sinks to .205 the third time through. However, his total batters faced sits at just 90 for each of the first two times through the order and 48 for the third time through. That’s a small enough sample that it’s difficult to say how much of the credit goes to Senga and how much is naturally occurring variation.

Either way it doesn’t matter much to Senga, who cares more about process than results, “Quite honestly, I don’t feel like I’m very good at any point during the game this year,” he told Keyser through his interpreter. Harsh words for a pitcher with an ERA- of 37. He does acknowledge that he makes adjustments throughout the game to get a better feel for his pitches and tweaks his strategy based on how each pitch is looking in a given start, which offers some explanation for the improved outcomes as the game goes on. But according to Senga, all of his pitches feel off this year, as he remains in the process of re-establishing his mechanics following the shoulder and calf injuries that sidelined him for nearly all of last year.

Senga’s self-evaluation reminds us that folks performing at the elite level of their fields don’t get there by letting good enough be good enough, but rather by insisting that nothing is ever good enough. To the layperson, it’s baffling to hear that Senga feels he’s pitching worse, despite posting better results than in 2023, his first MLB season, and the last in which he was fully healthy. Add on that he somehow manages to gain effectiveness throughout his starts despite a certain level of displeasure with all of his pitches, and it couldn’t be any clearer that regardless of what you read in Us Weekly, the stars are not actually just like us. Read the rest of this entry »

Joe Ryan has developed into one of the better pitchers in the American League. So far this season, the 28-year-old Minnesota Twins right-hander has a 5-2 record to go with a 2.57 ERA, a 3.19 FIP, and a 29.8% strikeout rate over 63 innings. Moreover, he’s been rock solid since debuting with the AL Central club in September 2021. His career ledger includes a 3.76 ERA and a 3.77 FIP over 533 1/3 frames, with all but one of his 95 appearances coming as a starter. The lone exception was working five innings as a bulk reliever in the resumption of a suspended game earlier this month.

His prospect profile wasn’t particularly high. Drafted 210th overall by the Tampa Bay Rays out of California State Stanislaus in 2018, Ryan proceeded to pitch well in the minors, but he was largely overshadowed. When our 2020 Tampa Bay Top Prospects list was published in March of that year, Eric Longenhagen wrote that the Rays possessed “one of the, if not the, best farm systems in baseball.” He ranked Ryan 13th in the organization and assigned him a 45+ FV. The Rays subsequently sent Ryan to the Twins in their July 2021 trade for Nelson Cruz.

What did Ryan’s 2020 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 Ryan to respond to it. Read the rest of this entry »

Kyle Stowers used to be part of that Baltimore Orioles position player prospect fire hose, but it’s OK if you forgot about him. Said fire hose has turned to a dribble as the Orioles’ fortunes have reversed. You also might have gotten him confused with Colton Cowser, which might be why the Orioles felt like they could trade him to Miami last summer for Trevor Rogers. (The other prospect in that trade, Connor Norby, has the same similar-name-mixup thing going with Coby Mayo. This town ain’t big enough for the two of us, etc.)

And if you still had your eye on Stowers after all that, you were probably put off when he hit .186/.262/.295 in 50 games for the Marlins after the trade. A better team, with a deeper talent pool, might’ve removed a 27-year-old outfielder with that batting line from its major league roster. But in Miami it’s more like a talent splash pad, so Stowers remains.

So much the better, because after 52 games, the former Stanford slugger is hitting .291/.362/.508. He has the same wRC+ as the much-celebrated Pete Crow-Armstrong, a higher wRC+ than Fernando Tatis Jr., Vladimir Guerrero Jr., and Bobby Witt Jr., three second-generation big leaguers with more than $1 billion in contracts among them. Read the rest of this entry »

As one-half of the majors’ most productive catching tandem, Carson Kelly doesn’t have enough plate appearances to qualify for the batting title, but like the Dodgers’ Will Smith, he’s been incredibly productive so far, particularly with runners in scoring position. Unlike Smith, he doesn’t have a lengthy track record of success; in parts of 10 major league seasons with five teams, Kelly has not only never made an All-Star team, he’s only played 100 games in a season twice, and finished with a 100 wRC+ or better just twice. But thanks to some changes to his swing mechanics over the past couple of seasons, he’s in the midst of a breakout campaign for the NL Central-leading Cubs.

The 30-year-old Kelly is hitting .290/.412/.589 with nine homers and a 179 wRC+ in 131 plate appearances. He’s started 28 of the Cubs’ 56 games behind the plate, while Miguel Amaya started 25 before landing on the injured list this past weekend due to an oblique strain, an injury that interrupted a promising start to the 26-year-old backstop’s season. Though Kelly homered after replacing Amaya in Saturday’s loss to the Reds, he was limited to a single late-inning cameo over the next three days due to an unspecified illness before returning to the lineup on Wednesday night. Instead of recalling 21-year-old prospect Moisés Ballesteros, who spent five games DHing for the Cubs earlier this month but whose defense needs more refinement, the Cubs brought up Reese McGuire from Triple-A Iowa to replace Amaya on the roster; he started all three games while Kelly was ailing, homering twice in his season debut against the Reds. All told, the trio of Cubs catchers has been great offensively:

Read the rest of this entry »

No team has been caught stealing more than the Royals this year. As hard as it might be to believe, their 20 thwarted stolen base attempts are the most in the league. Their 70.1% stolen base success rate ranks 27th, as do their -2.1 weighted stolen base runs (wSB). This stands in stark contrast to what many think of as the Royals’ brand of baseball. After all, you’d have to go back to 2017 to find a full season in which the Royals didn’t rank among the top five AL teams in wSB, and all the way back to 2010 to find the last time their wSB was below league average. Thanks to players like Whit Merrifield, Jarrod Dyson, Adalberto Mondesi, Alcides Escobar and, most recently, Bobby Witt Jr., the Royals of the 2010s and 2020s developed a reputation as the most larcenous team in the league. From 2011-24, no team stole more bases, and no team racked up more wSB.

Kansas City’s stolen base supremacy hasn’t been limited to one side of the ball, either. From 2011-24, only two teams allowed fewer stolen bases than the Royals, and none caught would-be basestealers at a higher rate. According to the stolen base component of DRS (rSB), their catchers were twice as productive as any other team’s backstops in that period, while their pitchers were 12 runs better than the next-best team (the Diamondbacks) and more than three times as valuable as the next-best AL club (the Orioles). The Statcast numbers tell a similar story, although they only go back to 2016. From 2016-24, Kansas City catchers ranked second in both catcher and pitcher stealing runs. No other team placed within the top five in both metrics. So, you could make a pretty convincing case that preventing stolen bases is even more essential to the Royals’ brand of baseball than stealing bases, especially with the way things have gone in 2025. Their baserunners might be struggling to swipe bags like they did in the past, but their defense has taken control of the running game like never before. Read the rest of this entry »

You can’t keep Pete Crow-Armstrong away from the baseball field. I mean that in the sense that he’s a passionate young star who loves the game and plays with his hair on fire all the time. But I also mean that in a more literal sense. The Cubs might need to devise a system for keeping Crow-Armstrong away from the baseball field. He has a problem.

The Cubs walked off the Rockies on Monday night. The score was 3-3. With one out and two on in the bottom of the 11th inning, rookie Matt Shaw stayed back and punched a Tyler Kinley slider into right field, scoring Jon Berti from second base. It was thrilling. (For the Cubs, anyway; for the Rockies, it was probably akin to the feeling you have when you go to bed with a tickle in your throat and you just know that it’s a really bad cold coming on even though there’s no tangible basis for that certainty, and then you do in fact wake up in the middle of the night with a terrible cold.) As you’d expect after a thrilling(-slash-miserable) walk-off hit, Shaw got mobbed by his teammates.

Well, he got mobbed by one teammate, anyway. There’s Shaw, moments after his big hit, engaged in an intimate leaping chest bump with Crow-Armstrong. I mean “intimate” in the sense that it seemed like a special moment, but I also mean it in the sense that it’s just the two of them all alone on the grass under the romantic Chicago skies, smiling at each other like there’s nobody else in the whole wide world. The rest of the Cubs are just out of frame, celebrating too. Read the rest of this entry »

This is a public service post of sorts. If you’re like me, when you type “Run Ex” into Google, it will auto-complete to “Run Expectancy Matrix.” It knows what I want – a mathematical description of how likely teams are to score in a given situation, in aggregate. I use this extensively in analysis, and I also use it in my head when I’m watching a game. First and third, down a run? That’s pretty good with no outs, but isn’t amazing with two.

There’s just one problem with that Google search: It’s all old data. Oh, you can find tables from The Book. You can find charts that are current through 2019. There’s a Pitcher List article that I use a lot — shout out to Dylan Drummey, great work — but that’s only current through 2022. And baseball is changing so dang much. Rather than keep using old information, I thought I’d update it for 2025 and give you some charts from past years while I’m at it, so that you can understand the changing run environment and use them for your own purposes if you so desire.

First things first: Let’s talk methodology. I downloaded play-by-play logs for all regular season games played between 2021 and 2025. For each play, I noted the runners on base, the number of outs, and then how many runs scored between that moment and the end of the inning. I did this for the first eight innings of each game, excluding the ninth and extras, because those innings don’t offer unbiased estimates of how many runs might score. Teams sometimes play to the score, and the home team stops scoring after the winning run. If you have the bases loaded and no one out in the bottom of the ninth, one run will usually end it, and that provides an inaccurate picture of run scoring. That’s also why I skipped 2020; the seven-inning doubleheaders and new extra innings rules produced a pile of crazy results, and the season was quite short anyway. No point in trying to wade through that maze. Read the rest of this entry »

Count me among the multitudes who have been borderline obsessed with the emergence of Pete Crow-Armstrong as a superstar this season. I’m sure he’ll reach a saturation point eventually where hardcore fans get tired of him — it happened to superhero movies, and bacon, and Patrick Mahomes — but we’re not there yet.

Every time I write about PCA, I revisit the central thesis: This is a player who’s good enough to get by on his glove even if he doesn’t hit a lick. But out of nowhere, he’s turned into a legitimate offensive threat. Great athletes who play with a little flair, a little panache, a little pizzaz, tend to be popular in general. The elite defensive center fielder who finds a way to contribute offensively is probably my favorite position player archetype; the more I compared PCA to Lorenzo Cain, Jackie Bradley Jr., Enrique Bradfield Jr., Carlos Gómez… the more I understood why I’d come to like him so much.

In fact, let’s take a moment to talk about Gómez, and his offensive breakout in the early 2010s. Read the rest of this entry »

Will Aaron Judge win the Triple Crown? If you were hanging around on FanGraphs three years ago, this question might sound familiar. If you don’t want to click the link, back at the end of 2022, both Judge and Paul Goldschmidt were within earshot of a Triple Crown in the final weeks of the season. The projected probabilities were firmly against either of them winning it (about 4% for Judge and 3% for Goldschmidt), the bank won as it tends to do, and Miguel Cabrera remained the only Triple Crown winner of the last half-century. There’s a lot of 2025 left to go, but the man sometimes known as Arson Judge is once again setting fire to the league. And this time, some of the factors weighing against his potentially performing the feat are no longer present.

Triple Crown stats have lost their luster as tools for evaluating overall performance, especially batting average and runs batted in, but not everything has to be an optimized evaluative tool to be cool. Bo Jackson was not even close to the best baseball players of the late 1980s, but I dare someone to say he wasn’t one of the [insert superlative used by kids today that Dan totally doesn’t know because he’s old] players of his time. Triple Crowns are fun in a way that some sabermetric Triple Crown, perhaps wRC+/sprint speed/FRV, is not. Judge is, of course, also having an insanely good season by our more nerdy numbers, but today, we’re old school. And what could possibly be more old school and sepia toned than projection algorithms? Read the rest of this entry »

Home teams don’t win enough in extra innings. It’s one of the most persistent mysteries of the last five years of baseball. Before the 2020 season, MLB changed the extra innings rules to start each half of each extra frame with a runner on second base. (This only occurs during the regular season, which means the 18-inning ALDS tilt between the Mariners and the Astros in the picture above didn’t actually feature zombie runners, but the shot was too good to pass up.) They did so to lessen the wear and tear on pitchers, and keep games to a manageable length. Almost certainly, though, they weren’t planning on diminishing home field advantage while they were at it.

In recent years, Rob Mains of Baseball Prospectus has extensively documented the plight of the home team. Connelly Doan measured the incidence of bunts in extra innings and compared the observed rate to a theoretical optimum. Earlier this month, Jay Jaffe dove into the details and noted that strikeouts and walks are a key point of difference between regulation frames and bonus baseball. These all explain the differing dynamics present in extras. But there’s one question I haven’t seen answered: How exactly does this work in practice? Are home teams scoring too little? Are away teams scoring too much? Do home teams play the situations improperly? I set out to answer these questions empirically, using all the data we have on extra innings, to get a sense of where theory and practice diverge.

The theory of extra inning scoring is relatively simple. I laid it out in 2020, and the math still works. You can take a run expectancy chart, start with a runner on second and no one out, and figure out how many runs teams score in that situation in general. If you want to get fancy, you can even find a distribution: how often they score one run, two runs, no runs, and so on. For example, I can tell you that from 2020 to 2025, excluding the ninth inning and extra innings, teams that put a runner on second base with no one out went on to score 0.99 runs per inning. Read the rest of this entry »