Aaron Bates has a dual role with the Dodgers. The 35-year-old former first baseman serves as the team’s assistant hitting coach, and he’s also the director of hitting for the minor leagues. Now in his fifth year with Los Angeles, he works in conjunction with big-league hitting coach Robert Van Scoyoc, and hitting strategist Brant Brown.

A third-round pick out of North Carolina State by Boston in 2006, Bates played eight professional seasons — he logged 12 plate appearances with the Red Sox in 2009 — before joining the coaching ranks. His final swings came with the Dodgers in 2014, the same year he was asked to help tutor up-and-coming prospects such as Scott Schebler and Corey Seager. From there he served as a hitting coach in the Arizona, Midwest, and California leagues. In 2018, he became the assistant hitting coordinator for LA’s minor league system.

Bates sat down to talk hitting when the Dodgers visited Fenway Park in mid-July.

———

David Laurila: How are hitters in the Dodgers’ system taught, and evaluated?

Aaron Bates: “Brownie and Robert are both unbelievable. They have a way of communicating with players that is simplistic, makes sense, and provides answers. They can say, ‘This is why you’re making outs,” or ‘This is why you’re doing that.’ When you can provides answers to a player, it’s a breath of fresh air for him.

“It’s extremely important to be upfront with the players. We let them know there are numbers we value, as far as them being promoted, and they’re not necessary your baseball-card numbers. It could be OPS, wRC+, and their walk and strikeout rates. We let them know it’s not solely based on their batting averages.

“We let them know what we consider a good at-bat. We’re process-oriented, so if you line out, don’t get mad, and if you get a bloop single, don’t get extra happy. Over the course of the season, what we want is for them to hit the ball hard. That, and to be process-oriented. Read the rest of this entry »

As I’ve chosen topics to research and write about over the past few months, I’ve let an obsession creep into my writing catalog — I’m fascinated by pitcher and batter behavior in 3-0 counts. Whether it’s three-pitch strikeouts after falling behind 3-0, Ronald Acuña aggressively hacking on 3-0, or even just Brandon Belt sneaking in a bunt, I can’t get enough of the goofy ways baseball gets distorted in that most extreme of counts.

What’s so fun about 3-0 is that context matters. For a lot of baseball, looking at things in a context-neutral fashion is the best way to analyze it. A double is a double is a double, and it doesn’t make sense to treat one with the bases juiced in a tie game differently than you would a leadoff double in the first inning when you’re assessing a player. Hitters have little control over balls in play, and absolutely none over who’s on base when they come to the plate. Pitchers, likewise, can’t control sequencing — that’s why concepts like wOBA and FIP do a better job predicting future results than RBI and win/loss record (or, fine, ERA).

But one place context does matter is the count. The world of 3-0 counts is only barely related to 0-2 counts. A pitcher’s arsenal is limitless at 0-2, constrained mostly to fastballs on 3-0. Conversely, a batter has no choice other than to defend the strike zone on 0-2, whereas 3-0 opens up myriad possibilities. That context is what makes the realm of 3-0 counts so fascinating to me. Today, I thought I’d take a theoretical approach to the subject. Read the rest of this entry »

Jack Little may well become a big-league pitcher. Ditto a member of a big-league front office. Drafted in the fifth round this year out of Stanford University, the 21-year-old right-hander possesses the potential to do both. For now, he’s taking the mound for the Great Lakes Loons, the low-A affiliate of the Los Angeles Dodgers.

On Friday, I asked Little about the genesis of his low-three-quarter arm slot.

“That’s a good question, honestly,” replied the righty, who has a 2.05 ERA in 22 professional innings. “In high school I was more high three-quarters — a normal three-quarters slot — but then I kind of just naturally moved lower. It wasn’t intentional, I just did it.”

Success followed. Little began getting more swings-and-misses with his fastball, and unlike many pitchers who move to a lower slot, the movement wasn’t downward. “I started missing above barrels a lot more,” Little explained. “I became more deceptive, and while I’m not 98 [mph] — I’m only low 90s — it kind of gets on the hitter, and plays more up in the zone.”

His slider is his best secondary pitch, which didn’t used to be the case. Prior to moving into the closer role at Stanford in his sophomore season, Little’s changeup was his go-to off-speed. He subsequently became fastball-heavy, with his changeup in his back pocket, and his slider a reasonably reliable No. 2 option… this despite its being, as he now knows, markedly unrefined. Read the rest of this entry »

Ben Lindbergh and Sam Miller banter about Bryce Harper’s clutchness and how he’s perceived by fans, Clayton Kershaw’s resurgence, and Mickey Callaway’s comments about analytics, then answer listener emails about the same player batting twice and playing two positions, whether Byron Buxton’s defense has hidden value, career WAR vs. career counting stats, whether players could call balls and strikes better than umpires, and the umpire replacement level in the age of computer-called strike zones, plus Stat Blasts about pitchers whom Mike Trout has faced only once and the Cubs’ extreme home/road split, and a postscript about the Angels’ historic .500-ness and how hitter aging curves have changed.

Audio intro: Courtney Barnett, "Crippling Self-Doubt and a General Lack of Confidence"
Audio outro: Dave Mason, "We Just Disagree"

Link to Sam on Harper
Link to Craig on Harper
Link to Ben Clemens on Kershaw
Link to Callaway’s comments
Link to story on the Metrodome’s ventilation system
Link to Chuck Klosterman basketball story
Link to player eyesight story
Link to Ben on young hitters
Link to order The MVP Machine

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Last night, the Cubs entered the bottom the ninth inning with a 5-1 lead and a 98.3% chance of winning the game according to our Play Logs. After recording the first out, the win probability moved up to 99.4%, but after an error, three singles, and a hit batter, the Cubs’ lead was cut to 5-3 and Bryce Harper stepped up to the plate against Derek Holland with the bases loaded, and the Phillies’ win expectancy had moved up to 32.3%. Then it moved up to 100% when this happened:

As far as pitches go, it wasn’t necessarily a bad one. There have been over 500 pitches this season of at least 94 mph in a left-on-left matchup where the pitcher hit the inside corner or further inside. Only 35 such pitches resulted in base hits, with a .276 BABIP and .143 ISO. There were only four homers on pitches like that, and after last night, Harper has two of them, with another coming in June off Max Fried.

Harper’s homer last night took a long time to land. Read the rest of this entry »

We have a sizable collection of players to talk about this week because the two of us have been busy wrapping up our summer looks at the 2020 Draft class over the last couple weeks. This equates to every prospect added to or moved on THE BOARD since the Trade Deadline.

Top 100 Changes
We had two players enter the 50 FV tier in Diamondbacks SS Geraldo Perdomo and Padres C Luis Campusano. Perdomo is in the “Advanced Baseball Skills” player bucket with players like Vidal Brujan, Brayan Rocchio and Xavier Edwards. He’s added visible power since first arriving in the States and had as many walks as strikeouts at Low-A before he was promoted to the Cal League, which has been Campusano’s stomping ground all summer. He’s still not a great catcher but he does have an impact arm, big power, and he’s a good enough athlete that we’re optimistic he’ll both catch and make the necessary adjustments to get to his power in games down the line.

We also moved a D-back and a Padre down in RHP Taylor Widener and 1B Tirso Ornelas. Widener has been very homer prone at Triple-A a year after leading the minors in K’s. His fastball has natural cut rather than ride and while we still like him as a rotation piece, there’s a chance he continues to be very susceptible to the long ball. Ornelas has dealt with injury and swing issues.

On Aristides Aquino
Aristides Aquino was a 50 FV on the 2017 Reds list; at the time, he was a traditional right field profile with big power undermined by the strikeout issues that would eventually cause his performance to tank so badly that he became a minor league free agent. A swing change visually similar to the one Justin Turner made before his breakout (Reds hitting coach Turner Ward comes from the Dodgers) is evident here, so we’re cautiously optimistic Aquino will be a productive role player, but we don’t think he’ll keep up a star’s pace. Read the rest of this entry »

50 games into his major league career, Yordan Alvarez has a 183 wRC+ and has been worth 2.3 WAR. Let’s take a look at what we might be able to reasonably expect from the 22-year-old slugger moving forward. Here is how Alvarez compares to the rest of the league:

When you hit the ball hard and at a good launch angle often, and draw walks often, good things generally happen in the batter’s box. This has been true for Alvarez thus far. According to Statcast’s Erdős number calculations, among the most similar hitters to Alvarez this year are Christian Yelich, Pete Alonso, and Jorge Soler.

Of course, most of the hitters on the major league leaderboards are several years older than Alvarez. At just 22-years-old, he is currently sixth in the major leagues in barrels per plate appearance, behind such hitters as Mike Trout and Joey Gallo, and ahead of hitters like Yelich and Aaron Judge and Cody Bellinger. In barrels per batted ball event, he is ninth. No one above him on either list is his age. Alvarez’s xwOBA (.420) is sixth in baseball and also better than two other young bat-first prospects with above average batted ball profiles. Juan Soto, last year’s offensive wunderkind, currently sits at .410, while Keston Hiura is at .365. Soto, who is younger than Alvarez, doesn’t hit the ball quite as hard or do so as often as Alvarez, but he draws more walks. Hiura, who about 10 months older, hits the ball harder more often, but also draws fewer walks and swings and misses more. Read the rest of this entry »

Read the rest of this entry »

Last week, Mike Trout celebrated his 28th birthday, and here at FanGraphs, Craig Edwards baked a cake, so to speak, by using some yardsticks to measure Trout’s career to date without considering Wins Above Replacement. As Craig noted here, and as Ben Lindbergh said similarly at The Ringer, WAR and Trout have become rather inextricably linked during the span of his career. The metric’s ability to estimate value in the field and on the bases as well as at the plate has helped us appreciate the completeness of Trout’s game and accelerated our understanding of the breakneck pace at which he has carved out a spot among the very best in history.

With roughly six weeks to go in his age-27 season, Trout already has the highest WAR of any player at that stage. By FanGraphs’ version, his 72.9 WAR is 4.1 ahead of Ty Cobb, while by Baseball-Reference’s version, his 72.1 WAR is 3.1 ahead. Trout has done this despite having reached 120 games played in just six seasons thus far, though by this time next week, he’ll have reached that modest plateau a seventh time.

Less than 15 months ago, before Trout had even turned 27, I noted that he had matched the bWAR-based JAWS standard among center fielders — the average of the Hall of Famers at the position — moving into eighth place in those rankings. Since then, he’s climbed up to sixth, with a clear shot to surpass Ken Griffey Jr. for fifth before the month ends. Perhaps more impressively, this week he climbed past Mickey Mantle — Extra! Extra! Millville Meteor Overtakes Commerce Comet! — to take over sole possession of third place in seven-year peak (65.2), with Thursday night’s 4-for-4 showing against the White Sox, featuring his 40th homer of the season (one short of his career high, set in 2015) breaking what had been a tie that had lingered for a few days. Here, have a dinger:

Read the rest of this entry »

Back in April, I wrote about how the Korea Baseball Organization (KBO) had de-juiced their baseballs, and how the offensive environment in the league appeared to be reflecting that change. If you remember from the piece, in March, the KBO conducted a test on a batch of new baseballs to test their coefficient of restitution (COR). It was supposedly reduced from a range of .4123-.4374 to .4034-.4234, while the ball size was increased by 1 millimeter and 1 gram. However, the test brought out some interesting results, as they found several defective balls with a COR more in line with the 2018 baseballs mixed in with the new, less-lively ball.

It doesn’t mean that this season has looked like 2018, though. In fact, the changes became clear in a month’s worth of games, but now that it’s mid-August, I thought I’d give you an update with a bigger sample size. I also thought it would be interesting to see how the de-juiced balls interact with Korea’s warm summer weather. The 2019 KBO regular season is about two-thirds of the way through, and league-wide temperatures have risen enough to see if hotter temperatures have caused an uptick in power that might counteract the effects of the new ball.

Here is how the overall league offensive numbers look this year, compared to those of last year:

Read the rest of this entry »