MLB, in memo, orders set of pitch clock tweaks
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Jeff PassanESPN
Major League Baseball is making slight changes to its new pitch clock rules but will not alter the most significant portions of the mandates that have shaved 25 minutes off game times this spring, according to a memo obtained by ESPN.
The document — the fifth of what a source called “clarification memos” sent by the league this spring — was distributed Wednesday after players on the joint competition committee between the MLB Players Association and MLB requested various changes earlier in the week.
MLB, which has control over on-field rules, will continue with the parameters of the pitch clock that players have been using all spring: 15 seconds with the bases empty and 20 seconds with runners on base, plus the hitter needing to be “alert” in the batter’s box with 8 seconds remaining.
“On one hand, we are prepared to make adjustments based on input,” commissioner Rob Manfred said Tuesday. “On the other hand, we want to give it a chance to see how it plays out exactly over a period of adjustment in some regular-season games before we make any significant alterations.”
Pitch clock violations have dipped precipitously over the first month of spring training, according to the memo, dropping from 2.03 per game in the first week to 1.03 this week, in line with the reduction in minor league testing last season. The average spring training game time has fallen from 3 hours, 1 minute to 2 hours, 36 minutes, the memo said.
The clarification memos have addressed more obscure issues and potential for attempts to circumvent the rules. The most important piece of the memo distributed Wednesday was the league changing replay review rules on potential violations of the infield shift ban. With the possibility of teams regularly issuing challenges after outs in hopes that one of the four infielders was positioned with his feet on the outfield grass — which would negate the out and return the batter to the plate — the memo said on batted balls that only the positioning of the defender fielding them could be challenged.
Other issues addressed include:
• On malfunctions of the PitchCom units that allow the pitcher and catcher to communicate electronically, players must immediately inform umpires, who can grant time and stop the ticking clock. PitchCom has become a vital tool for players since its introduction last year. Perhaps as soon as this week, sources said, the league is expected to approve its use by pitchers, who with it could call their own games.
• New standards will be enforced for bat boys and bat girls, whose ability to quickly retrieve equipment will help efforts to speed up the game, according to the memo. The league will evaluate the performances of bat boys and bat girls and could ask teams to replace them if their performance is considered substandard.
• On brushback pitches and “big swings” — which either knock equipment out of place or land a player splayed out on the ground — umpires will delay the start of the clock and, if the clock operator starts it early, have the ability to wave off the timer.
• In situations where pitchers find themselves away from the mound — whether to cover first base or back up throws to home or third base in foul territory — the 30-second between-batters clock will be delayed. It restarts when the pitcher making a play at first is back on the infield grass and one backing plays up is in fair territory.
• Leniency for catchers who end an inning on base or at-bat. Umpires could turn off the 2-minute, 30-second between-innings clock at the 30-second mark if the catcher has made a “reasonable effort” to abide by the timer. If it reaches that point, a catcher will be allowed to receive one warmup pitch from the pitcher and make a throw down to second base to ensure he, too, has warmed up his arm.
• Placing the onus on hitters to restart the clock if they take a timeout. Hitters may call time once in an at-bat, and previously the clock was starting from 15 or 20 when players stepped into the batter’s box and were alert, leading to pitchers potentially holding the ball for long periods of time. Under the new guidelines, a player, regardless of where he is standing, must indicate to an umpire that he is ready to resume play, at which point the umpire will tell the operator to wind the clock.
The 2025 MLB All-Star Home Run Derby is fast approaching — and the field is set.
Braves hometown hero Ronald Acuna Jr. became the first player to commit to the event, which will be held at Truist Park in Atlanta on July 14 (8 p.m. ET on ESPN). He was followed by MLB home run leader Cal Raleigh of the Seattle Mariners, James Wood of the Washington Nationals, Byron Buxton of the Minnesota Twins, Oneil Cruz of the Pittsburgh Pirates, Junior Caminero of the Tampa Bay Rays, Brent Rooker of the Athletics and Jazz Chisholm Jr. of the New York Yankees.
On Friday, however, Acuna was replaced by teammate Matt Olson.
With all the entrants announced, let’s break down their chances at taking home this year’s Derby prize.
Full All-Star Game coverage: How to watch, schedule, rosters, more
2025 home runs: 17 | Longest: 434 feet
Why he could win: Olson is a late replacement for Acuna as the home team’s representative at this year’s Derby. Apart from being the Braves’ first baseman, however, Olson also was born in Atlanta and grew up a Braves fan, giving him some extra motivation. The left-handed slugger led the majors in home runs in 2023 — his 54 round-trippers that season also set a franchise record — and he remains among the best in the game when it comes to exit velo and hard-hit rate.
Why he might not: The home-field advantage can also be a detriment if a player gets too hyped up in the first round. See Julio Rodriguez in Seattle in 2023, when he had a monster first round, with 41 home runs, but then tired out in the second round.
2025 home runs: 36 | Longest: 440 feet
Why he could win: It’s the season of Cal! The Mariners’ catcher is having one of the greatest slugging first halves in MLB history, as he’s been crushing mistakes all season . His easy raw power might be tailor-made for the Derby — he ranks in the 87th percentile in average exit velocity and delivers the ball, on average, at the optimal home run launch angle of 23 degrees. His calm demeanor might also be perfect for the contest as he won’t get too amped up.
Why he might not: He’s a catcher — and one who has carried a heavy workload, playing in all but one game this season. This contest is as much about stamina as anything, and whether Raleigh can carry his power through three rounds would be a concern. No catcher has ever won the Derby, with only Ivan Rodriguez back in 2005 even reaching the finals.
2025 home runs: 24 | Longest: 451 feet
Why he could win: He’s big, he’s strong, he’s young, he’s awesome, he might or might not be able to leap tall buildings in a single bound. This is the perfect opportunity for Wood to show his talent on the national stage, and he wouldn’t be the first young player to star in the Derby. He ranks in the 97th percentile in average exit velocity and 99th percentile in hard-hit rate, so he can still muscle the ball out in BP even if he slightly mishits it. His long arms might be viewed as a detriment, but remember the similarly tall Aaron Judge won in 2017.
Why he might not: His natural swing isn’t a pure uppercut — he has a pretty low average launch angle of just 6.2 degrees — so we’ll see how that plays in a rapid-fire session. In real games, his power is primarily to the opposite field, but in a Home Run Derby you can get more cheapies pulling the ball down the line.
2025 home runs: 20 | Longest: 479 feet
Why he could win: Buxton’s raw power remains as impressive as nearly any hitter in the game. He crushed a 479-foot home run earlier this season and has four others of at least 425 feet. Indeed, his “no doubter” percentage — home runs that would be out of all 30 parks based on distance — is 75%, the highest in the majors among players with more than a dozen home runs. His bat speed ranks in the 89th percentile. In other words, two tools that could translate to a BP lightning show.
Why he might not: Buxton is 31 and the Home Run Derby feels a little more like a younger man’s competition. Teoscar Hernandez did win last year at age 31, but before that, the last winner older than 29 was David Ortiz in 2010, and that was under much different rules than are used now.
2025 home runs: 16 | Longest: 463 feet
Why he could win: If you drew up a short list of players everyone wants to see in the Home Run Derby, Cruz would be near the top. He has the hardest-hit ball of the 2025 season, and the hardest ever tracked by Statcast, a 432-foot missile of a home run with an exit velocity of 122.9 mph. He also crushed a 463-foot home run in Anaheim that soared way beyond the trees in center field. With his elite bat speed — 100th percentile — Cruz has the ability to awe the crowd with a potentially all-time performance.
Why he might not: Like all first-time contestants, can he stay within himself and not get too caught up in the moment? He has a long swing, which will result in some huge blasts, but might not be the most efficient for a contest like this one, where the more swings a hitter can get in before the clock expires, the better.
2025 home runs: 23 | Longest: 425 feet
Why he could win: Although Caminero was one of the most hyped prospects entering 2024, everyone kind of forgot about him heading into this season since he didn’t immediately rip apart the majors as a rookie. In his first full season, however, he has showed off his big-time raw power — giving him a chance to become just the third player to reach 40 home runs in his age-21 season. He has perhaps the quickest bat in the majors, ranking in the 100th percentile in bat speed, and his top exit velocity ranks in the top 15. That could translate to a barrage of home runs.
Why he might not: In game action, Caminero does hit the ball on the ground quite often — in fact, he’s on pace to break Jim Rice’s record for double plays grounded into in a season. If he gets out of rhythm, that could lead to a lot of low line drives during the Derby instead of fly balls that clear the fences.
2025 home runs: 19 | Longest: 440 feet
Why he could win: The Athletics slugger has been one of the top power hitters in the majors for three seasons now and is on his way to a third straight 30-homer season. Rooker has plus bat speed and raw power, but his biggest strength is an optimal average launch angle (19 degrees in 2024, 15 degrees this season) that translates to home runs in game action. That natural swing could be picture perfect for the Home Run Derby. He also wasn’t shy about saying he wanted to participate — and maybe that bodes well for his chances.
Why he might not: Rooker might not have quite the same raw power as some of the other competitors, as he has just one home run longer than 425 feet in 2025. But that’s a little nitpicky, as 11 of his home runs have still gone 400-plus feet. He competed in the college home run derby in Omaha while at Mississippi State in 2016 and finished fourth.
2025 home runs: 17 | Longest: 442 feet
Why he could win: Chisholm might not be the most obvious name to participate, given his career high of 24 home runs, but he has belted 17 already in 2025 in his first 61 games after missing some time with an injury. He ranks among the MLB leaders in a couple of home run-related categories, ranking in the 96th percentile in expected slugging percentage and 98th percentile in barrel rate. His raw power might not match that of the other participants, but he’s a dead-pull hitter who has increased his launch angle this season, which might translate well to the Derby, even if he won’t be the guy hitting the longest home runs.
Why he might not: Most of the guys who have won this have been big, powerful sluggers. Chisholm is listed at 5-foot-11, 184 pounds, and you have to go back to Miguel Tejada in 2004 to find the last player under 6 foot to win.
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