NEW YORK – Catchers were far more successful than batters through Major League Baseball's first full week of challenges to robot umpires, led by the Detroit Tigers and Dillon Dingler.
The overall success rate in the Automated Ball-Strike System was 55.2% (299 of 542), with fielding teams winning 59.7% of challenges (175 of 293), including 60.4% by catchers (169 of 280).
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“I like it a little more. I was pretty staunch against it, which I still may be to some degree,” New York Yankees manager Aaron Boone said.
There were just 13 challenges by pitchers, who won six. Batters were successful on 49.8% (124 of 249).
“I think it’s fun. It’s its own game inside the game, almost," Tampa Bay catcher Hunter Feduccia said.
Success rate was up from 49.5% last year at Triple-A, where defense won 53.7% and batters 49.5%
Detroit won the highest percentage of calls at 75% (15 of 20) while Arizona was at 71%, and Baltimore and Cincinnati both 67%.
Minnesota called for the most challenges with 32, winning 20 for a 63% success rate. Texas had the fewest, winning 4 of 10.
Cleveland was the least successful at 32%, with Washington at 38% and St. Louis and Texas at 40%
Detroit catchers were 8-0, with seven wins by Dingler.
ABS' impact could be seen when Atlanta played at Arizona last Thursday. The Braves were ahead 2-1 when the Diamondbacks' Ryne Nelson threw a 3-2 curveball on the upper, outside corner to Ozzie Albies that was called a strike by Malachi Moore. Albies challenged and headed toward first even before ABS showed the pitch missed the strike zone by 1.1 inches. The walk started an eight-run rally in a 17-2 romp.
“In some of these games, it’s had a more of a swinging effect on outcomes of at-bats and how things change than maybe even you thought,” Miami manager Clayton McCullough said.
Logan O’Hoppe of the Los Angeles Angels had the most victories, successful on 10 of 12. The Marlins’ Agustín Ramírez won 7 of 9 and the Los Angeles Dodgers’ Will Smith 8 of 11.
Seattle’s Cal Raleigh won 4 of 9 and the Athletics’ Shea Langeliers 3 of 9.
Among batters, Mark Vientos of the New York Mets and Iván Herrera both went 3-0. Mike Trout of the Los Angeles Angels was 3-1 along with Philadelphia's Kyle Schwarber and Tampa Bay's Jake Fraley.
Colorado's Hunter Goodman and Washington's Luis García Jr. were both 0 for 3.
Boone said Yankees staff and players daily review challenges made and opportunities missed.
Players still are getting used to ABS. Washington's Jorbit Vivas tapped his helmet signaling for an appeal on March 31 when the Nationals already had exhausted their two challenges.
Among umpires, Mike Estabrook had 11 of 12 calls overturned (91.7%), Andy Fletcher had 15 of 17 (88.2%), Ron Kulpa and Paul Clemons each 7 of 9 (77.8%) and Chris Segal 10 of 13 (76.9%), according to taptochallenge.com.
Will Little had just 1 of 10 calls reversed while Erich Bacchus was perfect with no overturned calls in five challenges. Others with low overturn rates with at least five challenges included Emil Jiménez (1 of 5), Jordan Baker (2 of 8), Ryan Additon and Nick Mahrley (both 2 of 7) and David Rackley (3 of 10).
Offense at record low
Offense again lagged through the first 139 games of the 2,430-game season.
The .234 big league batting average is down from .239 through the first full week last year, when it finished at .245. The average usually increases as the weather warms. The full-season low of .237 was set in 1968.
Fastball velocity at record high
Average fastball velocity is 94.6 mph, up from 94.1 mph through the first full week last year. The final figure increased in each of the last five seasons to a record 94.5 mph in 2025. It was 91.9 mph when MLB first started tracking in 2008.
“I wish I was facing the same pitching as I did my rookie year back when guys were throwing 88-mile-an-hour sinkers over the plate," said 33-year-old Cleveland catcher Austin Hedges. “That pitch doesn’t exist anymore.”
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AP Sports Writers Dan Gelston and Steve Megargee, and AP freelance writer Tom Withers contributed to this report.
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AP MLB: https://apnews.com/MLB