Jul 12, 2026, 07:26 PM ET Major League Baseball implemented the ABS challenge system for the 2026 season, which allows players to challenge a ball or strike call made by the plate umpire. Each team receives two challenges to start the game, and only batters, pitchers and catchers can challenge a call. If a team wins a challenge, it can keep challenging. If a team challenges incorrectly twice, it loses its challenges for the rest of the game.
Here are the ABS challenge system rankings for batters, catchers, teams and umpires for the 2026 MLB season.
Data updated through Sunday, July 12.
Batter ABS Challenge Leaders Catcher ABS Challenge Leaders MLB Team ABS Challenge Rankings Umpire ABS Challenge Leaders Rank Name Challenged Overturned Overturn% P 1 Louie Krupa 36 12 33.3% 2334 2 Derek Thomas 52 18 34.6% 3626 3 Dexter Kelley 44 16 36.4% 2927 4 Dillon Wilson 16 6 37.5% 1760 5 Edwin Jimenez 28 11 39.3% 2458 6 Emil Jimenez 58 23 39.7% 4645 7 Nic Lentz 79 32 40.5% 5771 8 John Libka 46 19 41.3% 4606 9 Scott Barry 53 22 41.5% 4578 10 James Jean 55 23 41.8% 4685 11 Mark Ripperger 79 34 43.0% 5734 12 Will Little 74 32 43.2% 5309 13 Alex Tosi 62 27 43.5% 5051 14 Jonathan Parra 32 14 43.8% 2487 15 David Rackley 72 32 44.4% 5623 15 Erich Bacchus 54 24 44.4% 5119 17 Jansen Visconti 65 29 44.6% 4630 18 Austin Jones 56 25 44.6% 4151 19 Shane Livensparger 64 29 45.3% 4623 20 Chris Conroy 60 28 46.7% 4596 21 Quinn Wolcott 79 37 46.8% 5853 22 Adam Beck 85 40 47.1% 5701 23 James Hoye 74 35 47.3% 5216 24 Mark Wegner 76 36 47.4% 5737 25 Ryan Additon 98 47 48.0% 5856 27 Edwin Moscoso 79 38 48.1% 5459 26 Vic Carapazza 77 37 48.1% 6192 28 Adam Hamari 62 30 48.4% 5606 29 Ryan Wills 78 38 48.7% 5240 30 Nick Mahrley 53 26 49.1% 4515 30 Tyler Jones 53 26 49.1% 3394 32 Nate Tomlinson 63 31 49.2% 5345 33 Jordan Baker 71 35 49.3% 5188 33 Tom Hanahan 71 35 49.3% 5319 35 D.J. Reyburn 70 35 50.0% 4532 35 Tripp Gibson 64 32 50.0% 5445 35 Steven Jaschinski 44 22 50.0% 2814 38 Jeremie Rehak 75 38 50.7% 5060 39 Carlos Torres 59 30 50.8% 4825 40 Nestor Ceja 76 39 51.3% 5441 41 Ryan Blakney 73 38 52.1% 5121 42 John Tumpane 76 40 52.6% 5165 43 Gabe Morales 64 34 53.1% 4564 43 Brennan Miller 64 34 53.1% 5037 45 Dan Merzel 79 42 53.2% 5346 46 Ben May 56 30 53.6% 4836 47 Sean Barber 80 43 53.8% 5006 48 Chad Fairchild 74 40 54.1% 4970 49 Junior Valentine 72 39 54.2% 5352 50 Alan Porter 77 42 54.5% 5130 50 Brian O'Nora 55 30 54.5% 3628 52 Chris Guccione 87 48 55.2% 5324 52 Brock Ballou 58 32 55.2% 3739 54 Mike Muchlinski 68 38 55.9% 5292 55 Clint Vondrak 59 33 55.9% 4796 56 Doug Eddings 73 41 56.2% 5362 57 Bruce Dreckman 80 45 56.3% 5297 58 Charlie Ramos 71 40 56.3% 3752 59 Bill Miller 78 44 56.4% 5398 60 Ramon De Jesus 79 45 57.0% 4703 61 Jen Pawol 56 32 57.1% 3209 62 Paul Clemons 68 39 57.4% 5480 63 Alfonso Márquez 71 41 57.7% 5173 64 Jim Wolf 76 44 57.9% 4626 65 Roberto Ortiz 69 40 58.0% 4731 65 Chad Whitson 69 40 58.0% 4865 67 Laz Diaz 91 53 58.2% 5559 68 Marvin Hudson 48 28 58.3% 3857 69 Cory Blaser 70 41 58.6% 4638 70 Hunter Wendelstedt 99 58 58.6% 5405 70 Lance Barrett 99 58 58.6% 5670 72 Malachi Moore 95 56 58.9% 5818 73 Rob Drake 71 42 59.2% 5415 74 Mike Estabrook 74 44 59.5% 5019 75 Lance Barksdale 83 50 60.2% 5206 76 Dan Bellino 78 47 60.3% 5218 76 Alex MacKay 78 47 60.3% 5268 78 Ron Kulpa 58 35 60.3% 3585 79 Willie Traynor 66 40 60.6% 5808 80 Manny Gonzalez 79 48 60.8% 4959 81 Jacob Metz 51 31 60.8% 2914 82 Adrian Johnson 58 36 62.1% 3675 83 Felix Neon 27 17 63.0% 1186 84 Brian Walsh 76 48 63.2% 4632 85 John Bacon 49 31 63.3% 2526 86 Chris Segal 82 52 63.4% 5040 87 Stu Scheurwater 80 51 63.7% 5310 88 Dan Iassogna 94 61 64.9% 5676 89 Todd Tichenor 65 43 66.2% 4777 90 Andy Fletcher 52 38 73.1% 3357 91 CB Bucknor 9 7 77.8% 674
