Author Archive

A Changeup Is Gonna Come to Queens

Brad Penner-Imagn Images

Devin Williams, the lights-out reliever with the M. Night Shyamalan changeup, has agreed to a three-year deal with the Mets. A two-time All-Star, Williams earned NL Rookie of the Year honors in 2020 and scored a down-ballot MVP vote as recently as 2023. Even after a disastrous 2025 season kicked his career ERA all the way up from 1.83 to 2.45, he still has a career ERA of – you guessed it – 2.45. Here’s my first piece of analysis: That’s so good, you guys! Assuming he won’t keep running a 55% strand rate from here on out, the Mets just signed up for three years of one of the best relievers in baseball; meanwhile, Williams just signed up for a quick ride from the Bronx to Flushing, but it’s important to note that the ride is always going to be longer than Google Maps predicts, because the odds of actually catching an express 7 train rather than the local are vanishingly small.

Let’s start with the terms of the deal and the credit for who reported which parts of those terms, and then we’ll take a nap and perform some more light analysis. Cool? Cool. Read the rest of this entry »


The Unscoopable Elly De La Cruz

Kiyoshi Mio-Imagn Images

So I had this brilliant theory. My brilliant theory was that Elly De La Cruz wasn’t as bad a defender as the numbers would have us think. De La Cruz finished the 2025 season with 11 fielding errors, the second most in baseball, and 15 throwing errors, also the second most in baseball. Put those two together and you get 26 total errors, the most in baseball. I thought those totals might be shortchanging De La Cruz a bit. My brilliant theory was wrong, but before I get to why, let me explain my thinking.

We should start with the fact the advanced numbers do not say that De La Cruz is a bad shortstop. He makes up for most of his errors with length, speed, and the Mega Man cannon where his right arm should be. Statcast’s FRV loved De La Cruz’s defense in 2024, and it pegged him as perfectly average as he battled through a quad strain in 2025. Baseball Prospectus’ DRP, which tends to skew more conservative than the other advanced metrics, had him at 0.8 runs in 2024 and -0.4 runs in 2025. Sports Info Solutions’ DRS has always liked De La Cruz’s defense the least, pegging him at -2 in 2024 and -5 in 2025. So it’s not as if De La Cruz is grading out as a catastrophe. I just thought he deserved even more credit, and with that credit, we might have started seeing him as an above-average shortstop rather than a good-enough shortstop. Read the rest of this entry »


Choose Your Weapon

James A. Pittman-Imagn Images

You just had to take in a ballgame. The sky was blue. The birds were chirping. On a day like today, even you couldn’t resist the siren song of the ballpark. You headed into the city and bought yourself a ticket, but now you’re in trouble. The zombie apocalypse began sometime after the third inning. The epicenter was right nearby, and the undead were drawn to the stadium in droves by the irresistible aroma of thousands of delicious humans. Maybe the churros too. It’s entirely possible that even the undead love the smell of churros. Whatever the reason, they (the zombies, not the churros) are flooding through the concourse and out into the stands. They’re climbing over the façade from every direction. You’re trapped.

You spent years telling anyone who would listen that the world was coming to an end. You told your family to prepare themselves the way you had been preparing yourself. You gave that speech every Thanksgiving, right up until you stopped getting invited to Thanksgiving. You built your bunker. You stocked it with food and batteries and flashlights and Twinkies. For reasons that you can’t quite recall, you’ve even got several cases of diapers down there. Most importantly, you stocked it with weaponry. You procured all kinds of weapons: big ones, small ones, stabby ones, shooty ones, explodey ones, poisony ones. You built a shrine to all the different ways a human being can inflict damage on any and all kinds of matter, and then you left it all behind, just hours before the apocalypse.

Here you are in your seat, and the zombies have got you surrounded. They want your sweet, sweet brains. The good news is that even without your arsenal, you’re ready to fight. You’ve been preparing for this moment your whole life. You reach back under your seat for the novelty helmet you discarded back in the third inning, scrape out as much nacho cheese as you can, and settle it onto your head. It may not be much good against a major league fastball, but as long as you can find some way to keep it in place, it should be strong enough to resist the teeth of the undead. Read the rest of this entry »


The Robo-Zone Could Make Catcher Defense More Valuable Than Ever

Mike Lang/Sarasota Herald-Tribune/USA TODAY NETWORK via Imagn Images

How much will the ABS challenge system hurt the ability of catchers to frame pitches? That question has been bouncing around my brain for quite a while now. I’d been waiting for the offseason to really dive into the numbers, and, well, we’re here. It’s the offseason. But now that I’ve dug into all the data I could find, I think the entire premise of that question might be flawed. I thought that correcting a couple of ball-strike calls a game would erase a couple of well-framed pitches. This would no doubt hurt the better framers more than it hurt the worse ones, simply because they earn more strikes and would have more to lose. At the same time, the lesser framers would have juicier pitches to challenge, boosting their numbers a bit. As a result, the gap between good and bad framers would shrink, furthering a trend that’s been going on since we first gained the ability to quantify the value of pitch framing. It would still be valuable, just not quite as valuable as it used to be. But I’m not so sure anymore. Let’s start with the data.

I pulled all the major league framing data I could. I pulled league-wide and individual catcher called strike rates both inside and outside the strike zone for the majors and for Triple-A, which in 2025 used the same challenge system we’ll see in 2026. I can tell you that 26 catchers got a significant amount of playing time in both Triple-A and the majors last season, and their called strike rate on pitches in the shadow zone in the majors fell by an average of 1.4 percentage points within the zone and 1.7 percentage points outside it relative to what it was in the minors. So while the Triple-A strike zone may be tighter, pitch framing is still harder in the majors. But the only data about how the challenge system has actually worked in the minors and in spring training of 2025 comes from MLB press releases, and it’s extremely sparse.

Of course, that data definitely exists. Baseball Savant guru Tom Tango wrote up a bunch of interesting takeaways from it on his blog a month ago. As you’d expect, players are more likely to challenge calls in higher-leverage moments, in the later innings, and on pitches that decide the outcome of an at-bat. For that reason, they tend to be less successful in those situations; they’re not challenging because they’re sure they’re right, but because they really want the call to go the other way. Tango also broke down some catchers and batters who were particularly good or bad at challenging. Not only did he provide their stats – poor Zac Veen challenged 24 pitches and got just three overturned – but Tango showed that Savant will be rolling out challenge probability numbers next year, using the distance from the edge of the strike zone to calculate the likelihood that any particular pitch will get challenged, and that any particular challenge will be successful. From there, it’s easy to calculate how much challenge value each batter or catcher creates above the average player. Read the rest of this entry »


Your Final Pre-Robo-Zone Umpire Accuracy Update

David Richard-Imagn Images

For four years now, I’ve been updating you on the changing contours of the strike zone. By my count, this is the 10th installment in that series and the sixth specifically about the accuracy of ball-strike calls on the edges of the zone. With the implementation of the ABS challenge system in 2026, these updates will no doubt start to look a bit different. This is our last umpire accuracy update of the pre-ABS era, so let’s take stock of where we are at the end.

After a tiny dip in 2024, umpires were back on track in 2025, posting a record-high accuracy rate of 92.83% overall. In fact, 2024 was the only year in the pitch-tracking era in which umpires didn’t set a record for accuracy. However, this latest record came with a bit of controversy. Early in the season, pitchers and catchers picked up on the fact that the strike zone seemed to have shrunk. The league tightened up the standards that it used to grade umpires, reducing the size of the buffer zone around the edges of the zone. As a result, accuracy shot up specifically on pitches outside the zone, even more specifically, on pitches just above the top of the zone, causing pitchers and catchers to complain that they were losing the high strike.

This graph reminds us of a couple facts that might just be so obvious that we rarely think about them. First, the vast majority of takes come on pitches outside the strike zone. Of course they do; those are the pitches you’re not supposed to swing at. This year, for example, 68% of the calls umpires had to make came on pitches outside the strike zone. Second, it’s easier to identify balls than it is to identify strikes. Of course it is; the area outside the zone is a lot bigger than the area inside the zone. Read the rest of this entry »


The We Tried Tracker Is Back and Open for Business

Nick Turchiaro-Imagn Images

Well sports fans, it’s that time again. We Tried season is officially upon us, and for the second offseason in a row, I will be keeping my eye fixed firmly on the periphery of the action. For the uninitiated, We Tried is a noun in this context. It’s the name for the phenomenon of reporters announcing, once a player has signed with a team, that another team was interested in signing that player too. Team A might have succeeded in landing the player in question, but Team B wants to make sure the public knows that they failed to sign him because they want credit for that failure. It is both our duty and great honor to award that credit. The illustrious Jon Becker has once again graciously offered to host the We Tried Tracker on his maniacally comprehensive MLB Matrices spreadsheet, so be sure to check there for all the latest in major league effort.

Jeff Passan, ESPN’s officially-licensed baseball bombardier, kicked off the real offseason bright and early on Tuesday morning (Becker tipped me off to the news not long after). At 7:00 AM, Passan published an offseason preview that featured a key piece of information about Josh Naylor, who agreed to return to the Mariners this past weekend:

The largest free agent contract the Pirates have ever handed out was more than a decade ago: three years and $39 million to Francisco Liriano. They are consistently a bottom-five payroll team. And yet the Pirates were primed to spend more than twice that on Josh Naylor before he re-upped with Seattle for five years and $92.5 million in the first signing of the winter on Sunday night — and they’re considering other possibilities to supplement Paul Skenes and a rotation that was among the five best in MLB in the second half.

Read the rest of this entry »


On Review, the Tie Should Go to the Runner

Jayne Kamin-Oncea-Imagn Images

During the playoffs, when it felt like every game involved at least one close play that everyone would be talking about the next day, I tried my hand at breaking down replays. I captured screen recordings of all the replay angles, dragged them into iMovie, and had a ball figuring out the exact moment when a cleat grazed the plate or a glove caught the runner’s elbow. I’d like to think I even got pretty good at it, so if anybody in the Replay Command Center over on Sixth Avenue ever needs a weekend off, I will gladly cover a shift or two. When you break down footage that way, you learn that close plays happen all the time and they’re so much closer than you realize. I’ve started to believe that we could do a better job of handling the closest of those plays. On tags and force plays, which make up roughly three-quarters of all replay challenges, I think it’s time we change the replay rules so that the tie goes to the runner.

Before we get too deep into my reasoning, we need to start by addressing whether or not the tie goes to the runner according to the current letter of the law. While we all learned that rule as children, it’s not how the game operates at the highest level. As David Wade wrote in The Hardball Times in 2010, umpires don’t believe the tie goes to the runner. They’re taught that there’s no such thing as a tie. Either the runner beat the ball or they didn’t, and that’s that. “There are no ties and there is no rule that says the tie goes to the runner,” said now retired umpire Tim McClelland in a 2007 interview. “But the rule book does say that the runner must beat the ball to first base, and so if he doesn’t beat the ball, then he is out.” That’s a major league umpire declaring that the rules say unambiguously the tie goes to the fielder. While it’s true that the Official Baseball Rules don’t mention ties, the rest of the quote is misleading.

Let’s establish that, logically, whenever a runner touches a base, we can split the time into three distinct categories: before, during, and after. That’s what McClelland was saying. The rule he was referring to was 5.06(a)(1), which leads off the section about what it means to occupy a base. It says: “A runner acquires the right to an unoccupied base when he touches it before he is out.” The onus is on the runner to touch the base first before he’s out. But how does the runner become out? Read the rest of this entry »


Joey Bart, Plate Discipline God?

Mark J. Rebilas-Imagn Images

This is the time of year when people start telling me that my job must be so hard now that there’s no baseball to write about. It happens every offseason. I always protest. While it’s true that without major league games to watch, one particularly fun and fruitful source of article ideas has dried up, I actually love writing in November. The truth about who was dealing with an injury all year starts trickling out. The free agent market is shaping up. General managers are hinting at their plans. Scott Boras is unveiling a fresh batch of the worst puns imaginable. I get to dig into my notes app, where I’ve been stashing weird ideas for a rainy day. More importantly, it’s a great time to reflect on the season that was. Everything is still somewhat fresh in your mind, but you’re working with a full season’s worth of numbers. You don’t have to worry that a player’s going to dive into the world’s worst slump the moment after you write about their hot streak. You can write about players who perhaps aren’t changing the course of the season, but are interesting in their own way. It’s a great time to check the leaderboards for a surprise.

Today’s surprise appeared on the SEAGER leaderboard. That’s Robert Orr’s metric for SElective AGression, and players find their way to the top by swinging at hittable pitches and laying off bad ones. Corey Seager, forever on brand, finished the season in second place (and first in an unpublished updated version). Aaron Judge and Ronald Acuña Jr. finished first and fourth, respectively, which makes plenty of sense since they finished first and fourth in walk rate and also mashed the ball. It was third place that held the name that surprised me: Joey Bart. The 6-foot-3, 235-pound Bart has seen his numbers turn around a bit in the past two seasons. Because he’s a catcher who splits time, his numbers represent a smaller sample with more room for fluctuation, but it was still eye-opening to see him in that kind of company.

Once a Johnny Bench Award winner at Georgia Tech, the second overall pick in the 2018 draft, and the heir apparent to Buster Posey, Bart debuted in San Francisco during the shortened 2020 season and struggled with injuries and underperformance from the get-go. Over 162 games from 2020 to 2023, he batted .219 with just 11 home runs. To that point in his career, his wRC+ in the minors was 123, compared to 77 in the majors. In April 2024, after Bart had exhausted his minor league options and Patrick Bailey had impressed in his own 2023 debut, the Giants traded Bart to the Pirates. Our preseason projections saw him putting up below-average numbers both at the plate and behind it. Instead, he had a career year. Splitting time with Yasmani Grandal and 2021 first overall pick Henry Davis, Bart ran a 121 wRC+, the fourth-highest mark among catchers with at least 200 plate appearances. He bested his career total with 13 home runs. Read the rest of this entry »


What if Baserunning and Defense Were as Valuable as Hitting?

Jim Cowsert-Imagn Images

In just about any sport you can name, offense is king. If you’re the one who scores the goals, the points, the runs, the whatever they call it in polo – the biscuits, maybe? – you’re going to get the plaudits. Who’s the greatest defenseman in the history of hockey? It’s Bobby Orr, of course, because he was the first great offensive defenseman. This pattern very much holds when it comes to baseball.

Among other things, the sabermetric revolution helped us codify the value of hitting relative to the other facets of the game. To wit, according to weighted runs above average – and we’re using that particular stat because, like standard baserunning and defensive metrics, it’s a counting stat that compares a player to the performance of an average player – the most valuable hitter during the 2025 season was one Aaron Judge. Judge created 82.5 more runs than the average hitter. That’s 21 runs more than any other player, and an astonishing 36 more than any other player not named Shohei Ohtani. Judge was the best offensive performer in the game by a mile, which makes him the frontrunner for the American League MVP award, even though he put up negative value as a baserunner and, depending on which metric you trust, his defense graded out somewhere between pretty good (DRS, FRV) and really bad (DRP). The best defender was Patrick Bailey, who put up 30 fielding runs, and the best baserunner was Corbin Carroll, who finished with a measly 10.3 baserunning runs. Offense is just more valuable than defense and baserunning. Here’s the distribution of values for the three portions of the game:

Read the rest of this entry »


How Often Does the Ball Roll Right Through Somebody’s Legs?

I found this in my notes last week. I have no idea how long it’s been there. It says: “How many times this season has an infielder let the ball go right between their legs?” I had no idea whatsoever. I couldn’t recall the last time I’d seen it. Probably in a highlight from the 1986 World Series.

Baseball is the ultimate scorekeeping sport, and thanks to sites like ours, when you ask how many times any particular event has happened, the answer is usually easy to find. How often does a righty hit a home run off a lefty in the top of the eighth inning with the tying run in the on-deck circle? It took me twice as long to type that question out as it did to look up the answer: It has happened five times in each of the last three years. Easy. But so far as I know, nobody keeps a count of grounders that go right through the wickets.

Errors get classified in certain ways. Our leaderboard tracks fielding and throwing errors. The play-by-play notes on Baseball Savant add in missed-catch errors. Other sources differentiate between reached-on-error errors and runner-advanced errors. But that’s about it. Because they represent arguably the most embarrassing way to commit an error, between-the-legs errors are special in a human sense, but nobody splits them out into their own column because there’s nothing particularly special about them in a baseball sense. At least, you wouldn’t think so initially. Read the rest of this entry »