Earlier this month, I wrote about the improvements that umpires have made in calling balls and strikes according to the rulebook strike zone. Today, I’d like to focus on the other side of that equation: pitch framing. The consensus around baseball is that pitch framing’s story has followed a very familiar arc. Call it the Competitive Advantage Life Cycle:

• Teams realize the immense value of a skill.
• An arms race ensues as they scramble to cultivate it.
• The skill becomes widespread across the league.
• Since the skill is more evenly distributed, it loses much of its value.

Once everybody got good at pitch framing, nobody was great at it. As Rob Arthur has put it, “Catcher framing felt like it was disappearing almost as soon as it was discovered.” I even have fun graphs to drive the point home. There are definitely more useful ways of presenting the data, but I like how these ones let you watch the entropy dissipate over time in open defiance of the second law of thermodynamics:

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It’s always nice to feel welcome. After excelling for the White Sox as a stopgap shortstop in 2022, Elvis Andrus will return to Chicago in 2023, this time as the team’s starting second baseman. Toward the end of the 2022 season, he made clear to reporters that he would welcome a return engagement and was open to shifting positions if need be. Apparently Rick Hahn was listening. The deal, pending a physical, is for a reported one year and $3 million. ESPN‘s Jeff Passan and USA Today’s Bob Nightengale first reported the deal and terms, respectively. Amazingly, after 14 years in the big leagues, this was the first time Andrus had ever been a free agent.

Although Andrus didn’t make our Top 50 Free Agents list, he accrued more WAR in 2022 than 37 players who did, and he has, in my opinion, the greatest surname in all of baseball. Our crowdsourced predictions pegged him for two years and $20 million, so if one year and $3 million sounds like a lot less to you, then your math is spot on. According to MLB Trade Rumors, the only other teams reported to have interest in Andrus were the Red Sox and Angels. Read the rest of this entry »

Major League Baseball will look significantly different in 2023 due to several new rules, but there’s another change that won’t attract as much attention as a pitch clock or all that steamy base-on-base action. Ten veteran umpires have retired and 10 new ones will be taking their place. I’d like to explore the effect these new umpires might have, but first, let’s look at the state of umpiring right now.

The short version is pretty simple: Since the beginning of the pitch tracking era in 2008, umpires have improved their accuracy in calling balls and strikes every single year. Accuracy has gone from 81.3% to 92.4%. If an improvement of 11.1% in 15 years doesn’t sound particularly big, consider it this way: incorrect calls have been cut by nearly 60%.

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Last week, pitching prospect Grayson Rodriguez was asked a great question on The Baseball Barb-B-Cast. Rodgriguez is ranked third in an excellent Baltimore system, and as a player who was drafted in 2018, his tenure with the club spans both the Dan Duquette and Mike Elias eras. The question was: How has the organization changed over time?

Rodriguez started his answer with, “Everything about the organization changed but the name.” He touched on technology, pitch development, and the turnover in the coaching staff, but the part I want to focus on came right at the beginning, when he was describing the Duquette era: “Our pitching philosophy was, it was like, ‘Hey, you know, as a starter we’re going to go out in the first three innings and we’re just going to throw nothing but fastballs, and we’re going to see if that works.’ And, like, terrible. Terrible idea.”

Yup. That does indeed sound like a terrible idea. It also made me wonder whether teams are as focused on establishing the fastball as they once were. A reduction in first inning fastball rate would make sense for a couple reasons. First, fastball usage has dropped overall as teams have learned that pitchers should throw their best pitch more often, and fastballs themselves have become less effective:

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There are a lot of ways to look at the numbers George Springer put up in 2022. Here’s the simplest: He had an All-Star season, posting a 132 wRC+ and piling up 4.2 WAR. That’s excellent. On the other hand, you could argue that he has been slipping for a while now. His wRC+ has declined in three consecutive seasons, and now that Kevin Kiermaier and Daulton Varsho are both Blue Jays, his days as a center fielder are officially over.

Analyzing Springer is tricky because he’s always been a great hitter no matter what was going on under the hood. He reached his offensive peak in 2019, posting a 155 wRC+ with the help of a career-high 43.2% hard-hit rate. Then in 2020 and ’21, his hard-hit rate came back to earth a bit, his pull rate spiked, and he literally doubled his launch angle. Despite the drastic changes, his wRC+ fell by just over 10 points, dropping him from elite all the way down to very nearly elite. Read the rest of this entry »

Hello, and welcome to an article where I’m wrong about everything. Like literally all of the things. Here’s what happened. I was thinking about the long, glorious farewell tour of Albert Pujols. After a five-year stretch during which he posted a wRC+ of 84, he put up a 151 wRC+ in 2022. That was the best he’d hit since his age-30 season. Pujols largely put up those numbers by smashing lefties. His 113 wRC+ against righties was good, but against lefties that number was 214. MVP Paul Goldschmidt was the only batter who performed better against lefties (minimum 130 plate appearances vs. southpaws).

Pujols’ resurgence really started in 2021, when he had a 145 wRC+ against lefties and a 35 against righties. That’s the season I was more interested in. As I thought about it, I started wondering whether the last part of his journey — established veteran defies the aging curve by settling comfortably into a platoon role — is happening more frequently. I had the sense that it was happening more frequently.

I was wrong. It is not happening more frequently. Here’s a graph comparing the last 11 years to the previous 10 years:

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Here’s something Joey Votto said while serving as a guest commentator in the Cincinnati broadcast booth in August: “The best in the game are matching the style of the game. The style of the game changes.” He was talking about hitting, but his point lined up with one of my favorite baseball metaphors. I often think of the game as an ecosystem. The players who thrive are the ones who are either built for or can adapt to the current game; changes to the style or the rules will always favor some players at the expense of others.

Changes will also favor some plays over others. As the infield shift rose to prominence, routine groundouts to shallow right field were fruitful and multiplied. Now that the shift has been outlawed, they’ll likely be pushed to the brink of extinction, and they’re taking one of baseball’s most exciting plays with them.

FanGraphs loves bunt doubles. This is a brief history of the bunt double by Jake Mailhot. This is a how-to manual for bunt doubles by the sainted Jeff Sullivan. In fact, he wrote about bunt doubles kind of a lot. As the shifting ecosystem means that bunt doubles are likely going the way of the dodo, it’s time to write the final chapter of their story. Read the rest of this entry »

Last week, I wrote about the handful of pitchers who drop their release points significantly when facing same-sided batters. Today I’m going to highlight a few who change their release points by a different method. Before we get to them, I’d like to talk a bit about why anybody would risk messing with their release point in the first place. This is an article about the potentially transformative power of scooching over.

I started thinking about arm angles with a very blunt test. For the last seven years, I pulled every pitcher’s average release point and their wOBA against lefties and righties, then calculated the correlation between them. I also pulled average velocity as a control variable of sorts. The correlation coefficients are small, but they line up with what we’d expect:

Unsurprisingly, it’s always good to throw the ball hard. Against same-sided batters, pitchers who release the ball lower and wider fare better. Against opposite batters, a wide release point is associated with poor results. Read the rest of this entry »

Back in November, left-hander Tyler Anderson signed with the Angels, and Ben Clemens wrote a super interesting piece about the deal. How did Ben make his article so interesting? By cheating. He was already writing a cool article about Anderson, so rather than start from scratch, he just folded the existing article into one about the signing. It was unfair to the rest of us who struggle to keep up with Ben even when he’s not juicing.

What Ben noted is that in 2020, Anderson started throwing his sinker from a lower arm slot against lefties. More recently, he started doing the same with some of his cutters. Dropping down some for his cutters meant that hitters could no longer assume that a low release point meant a sinker was coming, and it also improved the cutter’s performance. In 2022, lefties had a wOBA of .268 and an exit velocity of 79.5 mph against Anderson’s regular cutter. The drop-down cutter was at .124 and 76.3.

Inspired by Anderson’s novel approach, I went looking for pitchers who do the same thing. We’re not just looking for players who drop down some to throw certain pitches; there are too many of those to list. We’re specifically looking for players who dramatically change their arm angle depending on the handedness of the batters they’re facing. Once you weed out position players, who understandably have very inconsistent release points, there are only a few players who fit those parameters. Just six pitchers had a difference of more than three inches between their vertical release points against righties and lefties:

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Just under a year ago, Jake Mailhot identified Texas first baseman Nathaniel Lowe as a player with breakout potential. In fact, he wrote a whole article called, “Nathaniel Lowe Has Breakout Potential.” Then the 2022 season happened, and — you guessed it — Nathaniel Lowe officially broke out. He hit 27 home runs and raised his wRC+ from 114 to 143. Good for Nathaniel Lowe! He’s a slugger. Good for Jake Mailhot! He’s a clairvoyant.

The thing is, Lowe didn’t exactly follow the script laid out for him. Jake noted that for the last month and a half of the 2021 season, Lowe added some “responsible aggression,” lowering his strikeout rate despite swinging more often. He did that by making a ton of contact in the zone. Jake broke Lowe’s 2021 plate discipline stats down in a table, using August 16 as the dividing line. I’ve gone ahead and added 2022 to that table:

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