In the first full week of the Automated Ball-Strike System (ABS), catchers have been more successful than batters in challenging umpire calls, with a 59.7% success rate for defense and 60.4% for catchers specifically. The overall success rate for challenges in the ABS was 55.2%, with catchers winning 169 of 280 challenges.
Detroit Tigers catcher David Dingler stood out as the leader, going 8-0 in challenges, with seven wins to his name. The Tigers had the highest success rate of any team at 75%, winning 15 of 20 challenges.
Early Impact of ABS on Game Outcomes
ABS has already shown its potential to affect game outcomes, as seen in the Atlanta Braves vs. Arizona Diamondbacks game. In a pivotal moment, Ozzie Albies challenged a 3-2 curveball that was initially called a strike but missed the zone by 1.1 inches. Albies’ walk led to an eight-run rally, highlighting the influence of ABS on key at-bats.
Miami’s manager, Clayton McCullough, noted that the challenges have had a significant impact, changing the course of some games more than expected.
Notable Player Successes
Logan O’Hoppe of the Los Angeles Angels led players with 10 successful challenges out of 12, followed by Agustín Ramírez of the Miami Marlins, who won 7 of 9 challenges. Will Smith of the Los Angeles Dodgers and Cal Raleigh of the Seattle Mariners also had strong showings, with 8 of 11 and 4 of 9 successes, respectively.
For batters, Mark Vientos of the New York Mets and Iván Herrera both went 3-0, while Mike Trout (3-1) and Kyle Schwarber (3-1) also had successful challenges. Hunter Goodman and Luis García Jr. struggled, both finishing 0 for 3.
Challenges and Missed Opportunities
Aaron Boone, manager of the New York Yankees, mentioned that his team reviews their challenges daily, focusing on missed opportunities. Players are still adjusting to the new system, with instances like Jorbit Vivas of the Washington Nationals, who mistakenly called for an appeal after the team had already exhausted their two challenges.
Umpire Challenge Success Rates
The success rate for umpires in handling challenges varied. Mike Estabrook led with 11 of 12 calls overturned (91.7%), while Will Little struggled with only 1 of 10 calls reversed. Others, like Ron Kulpa and Paul Clemons, had solid overturn rates of 77.8%.
Offense at Record Low
Offensive production continues to lag in the early season. The league-wide batting average is .234, down from .239 at the same point last year, and still below the full-season low of .237 set in 1968. This trend is expected to improve as the weather warms, but the current trend shows that hitters are struggling early in the season.
Fastball Velocity at Record High
In contrast to offensive struggles, pitching velocity continues to rise. The average fastball velocity is now 94.6 mph, up from 94.1 mph at this point last year. This marks a continuation of a five-year upward trend, with 94.5 mph recorded as the highest average fastball velocity in 2025.
The increase in velocity is a major challenge for hitters, as noted by Austin Hedges, a 33-year-old catcher for the Cleveland Indians, who reminisced about facing slower pitching in earlier years.
