Bryce Miller has improved on his 2023 rookie season with the Seattle Mariners. Especially notable are his ERA (3.46 versus last year’s 4.32), FIP (3.70 versus 3.98), and OPS against opposite-handed hitters (.685 OPS versus .917). At the same time, many of his numbers have been strikingly similar. When I spoke to the 25-year-old right-hander at the end of July — he’s since made two starts — his win-loss record and average fastball velocity were identical to last year’s marks, as were his FB% and HR/FB%. His strikeout rate differed by just a few percentage points.

I cited those similarities to the righty, then proceeded to ask him what differentiates this season’s version of Bryce Miller from last year’s.

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Bryce Miller: “I think that type of stuff is very similar, but the lefty-righty splits are quite a bit different. Last year, lefties batted over .300 against me. This year, it’s around .215. I think the addition of the splitter has been big, and I’ve also been locating better. If you look at the heat maps from last year, a lot of the fastballs were in the middle of the plate. This year, I’ve gotten them [elevated] a little better for the most part. So getting the heaters up and the splitters down has helped me out a lot with the lefties. That’s really been the main thing.”

David Laurila: Why is the splitter so much better than the changeup you were throwing? Read the rest of this entry »

On Sunday evening, Camilo Doval stepped to the mound without his usual light show. He showed the range of his game right away – after striking out the first two batters he faced, he walked Greg Jones, who promptly stole both second and third. Then Nolan Jones ripped a scorching line drive to center for a triple, Elehuris Montero stroked a line drive single, and two runs had scored just like that. To make matters worse, this wasn’t even against the Rockies – it was against the Triple-A Albuquerque Isotopes.

It’s hard to wrap your head around Doval’s sudden fall from ace closer to minor leaguer. He debuted in the magical 2021 season, picked up closing duties at the tail end of that year, and looked like one of the best relievers in the sport almost immediately. In 2022 and ’23, he pitched to a 2.73 ERA and 2.87 FIP. He was wild at times, overpowering at others, and impossible to square up in every iteration. When you have a 100 mph cutter and a tight 90 mph slider to throw off of it, you don’t need much else. He was fifth in baseball in saves, ninth in reliever WAR, 10th in innings pitched among relievers; in other words, he was a one-man back-of-the-bullpen for the Giants.

One thing always bothered me about Doval, even when he was dominating the opposition for the last two years: His cutter doesn’t cut correctly. That sounds nonsensical, or at best like a weak nitpick. But here, take a look at his cutter as compared to Emmanuel Clase’s best-in-class offering, using our pitch-type splits:

The “cut” in a cutter refers to glove-side movement. A good cutter looks like a fastball out of the hand before the spin takes over; then it veers sharply away from the four-seam path that hitters have spent their whole lives tracking. It’s not just a matter of how differently shaped the cutter is from the rest of a given pitcher’s arsenal – just ask Mariano Rivera. Instead, it’s more about defying the brain patterns batters have built up over decades of playing baseball. That’s just not where a fastball should go, and so hitters either swing fruitlessly over it or, in the case of opposite-handed batters, end up breaking their bats when the pitch bores in on their hands.
Read the rest of this entry »

The other day, I wrote about Jake McCarthy’s BABIP, and touched on an assumption about which kinds of hitters are going to put up outlier numbers in that stat. McCarthy hits a lot of grounders, which generally produce a higher BABIP than fly balls (though they’re less productive by other metrics). He’s also left-handed and very fast, which means he ought to be able to beat out grounders for infield singles.

So let’s take a little gander at the infield hit rate leaderboard for qualified hitters. This is the percentage of groundballs a batter produces that turn into infield hits. Simple enough:

So yeah, Bellinger is primarily known for grinding hanging curveballs to make his bread, but in spite of his size, he is a left-handed fast guy. That tracks. Peña is a righty, but he’s very fast. His average home-to-first time is actually in the top 20 among all hitters — lefties and righties alike — this season. And because Peña hits so many grounders, he leads all batters in total infield hits with 24.

And then there’s Rhys Hoskins. Wait, what? Read the rest of this entry »

Thanks to the trade deadline, this is a quiet time of the year for transactions, but baseball’s injured list is always hopping, and Tuesday was sadly no exception. First came the announcement that Dodgers pitching prospect River Ryan, our 21st-ranked prospect on the Top 100, would require Tommy John surgery, ending his 2024 season, and at best keeping him out for the vast majority of 2025. Not to be left out of the UCL injury party, Jazz Chisholm Jr. injured his left elbow on a slide into home plate on Monday night. The exact severity of Chisholm’s injury is still unknown, but with the season rapidly reaching its conclusion, any significant time on the shelf could imperil his ability to help the Yankees in their playoff push this year.

Chisholm was easily the biggest addition the Yankees made at the deadline, a flexible offensive player who the team hoped would bring some emergency relief to an extremely top-heavy offense that has received an OPS in the mid-.600s from four positions (first base, second base, third base, and left field). And Chisholm was more than fulfilling that expectation, with seven home runs in 14 games on the back of a .316/.361/.702 slashline. As noted above, the full extent of his injury isn’t yet known, but in a tight divisional race with the Baltimore Orioles (and with a playoff bye at stake), every run is precious. The Yankees have had a curious amount of misfortune when it comes to the health of their deadline acquisitions in recent years; between Frankie Montas, Scott Effross, Lou Trivino, Andrew Benintendi, and Harrison Bader, you might get the idea that they mostly acquire medical bills in their trades. Read the rest of this entry »

Despite notching two wins over their last six games, the White Sox are flirting with history, and not the good kind. As of this morning, Chicago stands 63 games below .500, 42.5 games back in the AL Central, and on pace to finish 39-123. Out of compassion, I will refrain from reciting the record of the 1962 Mets, but the players from that team who are still with us are likely taking this time to get the champagne good and chilled. Hard as it may be to believe, the goal of this article is not to dunk on the White Sox. Instead, as we enter the home stretch of the season, I’d like to consider how they’ve affected the playoff picture.

The White Sox have played 25 of the other 29 teams in the league, and they have distributed to those fortunate franchises a net total of 63 victories in the same way that an elderly man on a park bench distributes bread to the legion of ravenous pigeons jockeying for position at his feet: indiscriminately. For a few weeks now, I’ve been wondering whether the landscape would look different if those 25 teams never had the good fortune of playing the White Sox. Whom have the White Sox helped or hurt the most? Read the rest of this entry »

I’ve made no secret of my longtime admiration for Rangers reliever Kirby Yates (formerly Braves reliever Kirby Yates and Padres reliever Kirby Yates), but what he’s doing now even surprised me.

Yates entered Tuesday night’s contest against the Boston Red Sox with an ERA of 1.04; that mark is second among big league relievers, behind only Emmanuel Clase (another favorite of mine). It’s also a career best for Yates, which is more surprising than it would be for most pitchers. Yates already has a season with a microscopic ERA on his CV: 2019, when he posted a 1.19 ERA in 60 2/3 innings, with a strikeout rate of 41.6% and a walk rate of 5.3%. Pitchers who produce even one season of that quality are vanishingly rare; pitchers who produce two are almost unheard of. Read the rest of this entry »

In early April, an article titled “Astros Pitching Prospect Spencer Arrighetti Is All in With Analytics” ran here at FanGraphs, and given what the 24-year-old right-hander had to say, the headline was wholly accurate. In a conversation that took place during spring training, Arrighetti displayed nuanced knowledge of his pitch metrics while comfortably addressing topics like seam-shifted wake and vertical approach angle. He presented as a bona fide pitching nerd.

Four months into his rookie season — he made his major league debut with Houston on April 10 — Arrighetti is a nerd with an altered approach. The evolution of his M.O. has taken place over the course of an up-and-down campaign that currently has him on a high. Over his last two starts, the 2021 sixth-round pick out of the University of Louisiana at Lafayette has allowed just three runs while fanning 25 batters in 13 innings. On the year, he has a 5.14 ERA, a 4.18 FIP, and a 27.9% strikeout rate in 105 innings.

Arrighetti explained how and why his approach has changed when we sat down to chat at Fenway Park this past weekend. My first question elicited an expansive, five-minute response, after which we shared a handful of additional exchanges.

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David Laurila: What’s changed since we talked in spring training?

Spencer Arrighetti: “I have a much better perspective now. When we talked in Lakeland, I was speaking with three big league spring training games under my belt. This is a very different game than I thought at that time. The conversation we had, as great as it was, left out a really big piece of what successful pitching is in the modern era. Obviously, shapes and velocity are really important. Arsenal design is really important. There are people who believe those are primary, but after my time up here, I’m not convinced that chasing shapes is the way to go. Read the rest of this entry »

There’s quite a lot of bickering in sports, and not many things bring out more vehement disagreement than discussions involving who should get various awards. Even now, nearly 30 years later, when I think about Mo Vaughn beating out Albert Belle for the 1995 AL MVP, or Dante Bichette finishing second in that year’s NL race despite putting up just 1.8 WAR, I have to suppress a compelling desire to flip over a table. This year, thankfully, it’s hard to imagine the MVP voting results will be anywhere near as egregious as the ones we saw in ’95. That’s because the way MVP voters in the BBWAA evaluate players has changed dramatically since then.

Aaron Judge has easily the best traditional case for the AL MVP award if the season ended today. He leads the league in two of the main old-school batting stats: home runs and RBI. Bobby Witt Jr. and his .347 batting average is all that would stand between Judge and the Triple Crown. For what it’s worth, Judge would win the MLB Triple Crown, with twice the emeralds, rather than the AL one.

For most of baseball history, beginning with the first time the BBWAA handed out the award in 1931, numbers like these usually would’ve been good enough to win MVP honors. It also would’ve helped Judge’s case that the Yankees have one of the best records in baseball. If this were 30 years ago, Judge would all but officially have this thing wrapped up, barring an injury or the worst slump of his career.

But it’s the 2020s, not the 1990s, and I doubt anyone would dispute too strenuously the notion that ideas on performance, and their related awards, have shifted in recent years. Now, when talking about either an advanced offense statistic like wRC+ or a modern framework statistic like WAR, Judge certainly is no slouch. He currently leads baseball with 8.3 WAR, and his 218 wRC+ would be the eighth-highest seasonal mark in AL/NL history, behind only seasons by Barry Bonds, Babe Ruth, and Ted Williams. But by WAR, his lead is a small one, roughly two-tenths of a run (!) over Bobby Witt Jr., who has surged since the start of July (.439/.476/.803, 247 wRC+ in 33 games) to supplant Gunnar Henderson as Judge’s main competition for the award. Henderson was right there with Judge for much of the early part of the season, and though he’s fallen off a bit, he’s still fourth in the majors with 6.4 WAR and capable of catching fire again at any time. With a month and a half left, Juan Soto can’t be completely counted out either.

A similar dynamic persists in the NL. Shohei Ohtani has looked a lot like the obvious MVP choice for much of the season, as he’s done, well, one half of the Shohei Ohtani thing: He is murdering baseballs and pitchers’ dreams. But as with Judge, there’s some serious competition when you look at WAR. Ohtani stands at the top, but by a fraction of a run ahead of Elly De La Cruz. Ketel Marte and Francisco Lindor are both within five runs of Ohtani, and nobody serious has ever claimed you can use WAR to conclusively settle disputes on differences that small. De La Cruz has more WAR than Ohtani since the start of June, and the latter two have more than the Dodgers slugger since the beginning of May. Marcell Ozuna, who has strong traditional stats (.302 BA, 35 HR, 90 RBI) shouldn’t be completely discounted if the Braves show signs of life; those numbers still matter, just not to the extent that they once did. With a fairly wide open race, there are plenty of stars with name power lurking just behind the leaders, such as Bryce Harper and Freddie Freeman.

The answer of who should win the MVP awards is one we probably can’t answer beyond me giving my opinion, which I won’t do given the likelihood that I will be voting for one of the awards. But who will win the MVP awards is something we can make a reasonable stab at predicting. It’s actually been a while since I approached the topic, but I’ve long had a model derived from history to project the major year-end awards given out by the BBWAA. It was due for some updates, because the voters have changed. Some of the traditional things that voters prioritized, like team quality, have been de-emphasized by voters, though not completely. And the biggest change is the existence of WAR. Whatever flavor you prefer, be it Baseball Reference, Baseball Prospectus, or the smooth, creamy swirl that can be scooped by our display window, this general stat has changed a lot about how performance is perceived.

There have been 47 MVP awards presented to position players who finished their seasons with fewer than 6.0 WAR; that’s more than a quarter of all hitter MVP seasons. However, excluding 2020, a hitter has not won an MVP without reaching that threshold since ’06, when both winners fell short: the NL’s Ryan Howard had 5.92 WAR, while AL winner Justin Morneau had 3.77 WAR.

When modeling the data, I use all the votes, not just the winners, and WAR is a pretty lousy variable when predicting voter behavior throughout most of history. That’s not surprising on its face since we’ve had WAR to use for only the last 15 years or so, making it impossible for most awards to have explicitly considered it. But there also appears to be only marginal implicit consideration, in which voters based their votes on the things that go into WAR without using the actual statistic. There’s a great deal of correlation between winning awards and high WARs in history, but that’s only because two of the things that voters have really liked, home runs and batting average, also tend to lead to higher WAR numbers. As an independent variable, WAR doesn’t help explain votes very well. That is, until about the year 2000.

If you only look at votes since 2000, all of a sudden, WAR goes from an irrelevant variable to one of the key components in a voting model. Voters in 2002 may not have been able to actually look at WAR, but even before Moneyball was a thing, baseball writers were paying much more attention to OBP, SLG, and defensive value at least partially because of analysts like Bill James, Pete Palmer, and John Thorn in the 1980s and ’90s. Now, depending on your approach, once you deal with the correlations between variables, WAR comes out as one of or the most crucial MVP variable today. Could you imagine a world, even just 20 years ago, in which owners would propose paying players based on what sabermetrics nerds on the internet concocted?

The model I use, which I spent most of last week updating, takes modern voting behaviors into consideration. I use all three WAR variants listed above because it’s not clear which one most voters use. Here is how ZiPS currently sees the two MVP races this season:

This model thinks Judge is the favorite, but his odds to lose are nearly a coin flip. Witt is the runner-up, followed by Soto, Henderson, and the somehow-still-underrated José Ramírez. If we look at a model that considers all the BBWAA-voting years rather than just the 21st century results, this becomes a much more lopsided race.

Over in the NL, the updated ZiPS model sees a race that’s far more uncertain than the one in the AL.

Ohtani comes out as the favorite, but he has less than a one-in-three chance to win it. Behind him are the other WAR leaders, plus Ozuna.

Some of the WAR leaders without strong Triple Crown numbers, like Lindor, drop off considerably based on the entire history of voting, while Ozuna becomes a co-favorite with Ohtani. I haven’t talked about pitchers much in this article; they’re still included in the model, but none make the top 10 in the projected probabilities. Simply put, the willingness to vote pitchers for MVP seems to have declined over time. ZiPS doesn’t think any pitcher has been as dominant this season as the two most recent starters to win the award, Clayton Kershaw in 2014 and Justin Verlander in ’11, and closers these days typically can’t expect to get more than a few stray votes at the bottom of ballots.

It’ll be interesting to see how voting continues to change moving forward. In any case, no matter who you support for the MVP awards, strap in because there’s still plenty of baseball left to be played.

What a wild ride it’s been for Jake McCarthy the past three seasons. In 2022, he finished fourth in NL Rookie of the Year voting, seemingly the right fielder of the future for the Arizona Diamondbacks. It wasn’t the kind of performance that would make anyone think that he — and not Corbin Carroll — was Arizona’s franchise player. But it was the kind of performance that could tempt inveterate contrarians into saying, “You know, Carroll gets all the attention, but McCarthy is the one who really makes this team tick.”

Then, in 2023, McCarthy was total buttcrack. He barely kept his head above replacement level as he lost playing time to Alek Thomas, Pavin Smith, Tommy Pham, and a partridge in a pear tree. Then, because when it rains it pours — even in the desert — McCarthy suffered an oblique injury that kept him from playing any part in the Diamondbacks’ run to the World Series.

But in 2024, he’s reclaimed his rightful place in the lineup, and he’s hitting .303/.375/.451. With almost two months left in the regular season, he’s set new career highs in games played and WAR. All is well once again. Read the rest of this entry »

This is Michael Rosen’s first piece as a FanGraphs contributor. You may have read his previous work at the site, including his article about the Kirby Index, a metric he created to measure command using release angles. He lives in Los Angeles and works as a transportation planner.

Earlier this year, I tried to solve the riddle of how Shota Imanaga threw his invisible fastball. The pitch had (and still has) a rare combination of traits: At the time of writing, only Imanaga and Cristian Javier threw fastballs from super flat vertical approach angles (VAA) with elite induced vertical break (IVB). A fastball with a flat VAA or high IVB plays a trick on the hitter’s perception; a fastball with both qualities becomes nearly unhittable, or invisible, when located at the top of the zone. I posed two questions in that piece: Why was this invisible fastball so rare? And what was Imanaga specifically doing to throw a fastball with these traits?

The first question can be answered, my research shows, by looking directly at release angles. Release angles reflect the direction that the pitcher is aiming the ball at release, which I wrote about at length in my article on the Kirby Index from May. That act of aiming — specifically, the direction the ball is oriented out of the pitcher’s hand — also affects the amount of backspin on a four-seam fastball. Read the rest of this entry »