Jul 22, 2026, 11:02 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 Wednesday, July 22.
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 Dillon Wilson 20 7 35.0% 2028 3 Derek Thomas 63 24 38.1% 4231 4 Edwin Jimenez 28 11 39.3% 2458 5 Dexter Kelley 48 19 39.6% 3204 6 Emil Jimenez 62 25 40.3% 4969 7 Mark Ripperger 88 36 40.9% 6317 8 John Libka 57 24 42.1% 5230 9 Nic Lentz 83 35 42.2% 6070 10 Will Little 80 34 42.5% 5877 11 Erich Bacchus 61 26 42.6% 5699 12 David Rackley 77 33 42.9% 5940 13 Scott Barry 60 26 43.3% 4911 14 James Jean 62 27 43.5% 4996 15 Jonathan Parra 32 14 43.8% 2487 16 Jansen Visconti 70 31 44.3% 5196 17 Austin Jones 56 25 44.6% 4151 18 Quinn Wolcott 85 39 45.9% 6176 19 Adam Beck 91 42 46.2% 6010 20 Ryan Additon 101 47 46.5% 6204 21 James Hoye 77 36 46.8% 5504 22 Chris Conroy 66 31 47.0% 5261 23 Shane Livensparger 72 34 47.2% 4895 23 Alex Tosi 72 34 47.2% 5342 25 Mark Wegner 76 36 47.4% 5737 27 Vic Carapazza 81 39 48.1% 6521 26 Edwin Moscoso 79 38 48.1% 5459 28 Adam Hamari 62 30 48.4% 5606 29 Tripp Gibson 70 34 48.6% 5815 30 D.J. Reyburn 75 37 49.3% 4842 31 Nestor Ceja 86 43 50.0% 6036 31 Tyler Jones 58 29 50.0% 3754 31 Steven Jaschinski 44 22 50.0% 2814 34 Jeremie Rehak 75 38 50.7% 5060 35 Nate Tomlinson 67 34 50.7% 5630 36 Nick Mahrley 59 30 50.8% 5180 36 Carlos Torres 59 30 50.8% 4825 38 Ryan Wills 92 47 51.1% 5814 39 Tom Hanahan 78 40 51.3% 5575 40 Chad Fairchild 77 40 51.9% 5276 41 Ryan Blakney 73 38 52.1% 5121 42 John Tumpane 76 40 52.6% 5432 43 Gabe Morales 68 36 52.9% 4886 44 Brennan Miller 66 35 53.0% 5330 45 Jordan Baker 79 42 53.2% 5466 45 Dan Merzel 79 42 53.2% 5346 47 Junior Valentine 76 41 53.9% 5637 48 Charlie Ramos 74 40 54.1% 4079 49 Alan Porter 77 42 54.5% 5130 50 Sean Barber 86 47 54.7% 5267 51 Ben May 60 33 55.0% 5411 52 Chris Guccione 87 48 55.2% 5324 52 Brock Ballou 58 32 55.2% 3739 54 Mike Muchlinski 72 40 55.6% 5525 55 Ramon De Jesus 84 47 56.0% 4936 56 Brian O'Nora 66 37 56.1% 4276 57 Doug Eddings 73 41 56.2% 5362 58 Hunter Wendelstedt 104 59 56.7% 5747 59 Jim Wolf 81 46 56.8% 4929 60 Clint Vondrak 70 40 57.1% 5095 60 Jen Pawol 56 32 57.1% 3209 62 Alfonso Márquez 75 43 57.3% 5435 62 Paul Clemons 75 43 57.3% 5789 64 Marvin Hudson 52 30 57.7% 4153 65 Lance Barrett 107 62 57.9% 6204 66 Chad Whitson 69 40 58.0% 4865 67 Bruce Dreckman 91 53 58.2% 5882 68 Malachi Moore 103 60 58.3% 6338 69 Mike Estabrook 84 49 58.3% 5534 70 Willie Traynor 73 43 58.9% 6413 71 Roberto Ortiz 76 45 59.2% 4996 72 Dan Bellino 86 51 59.3% 5796 73 Bill Miller 91 54 59.3% 5972 74 Laz Diaz 96 57 59.4% 5848 75 Cory Blaser 74 44 59.5% 4940 76 Rob Drake 79 47 59.5% 6019 77 Jacob Metz 57 34 59.6% 3214 78 Manny Gonzalez 83 50 60.2% 5181 79 Ron Kulpa 58 35 60.3% 3585 80 Alex MacKay 84 51 60.7% 5541 81 Brian Walsh 78 48 61.5% 4920 82 Adrian Johnson 58 36 62.1% 3675 83 Lance Barksdale 88 55 62.5% 5510 83 Felix Neon 40 25 62.5% 1782 85 Stu Scheurwater 84 53 63.1% 5558 86 Chris Segal 87 55 63.2% 5336 87 Dan Iassogna 98 62 63.3% 5934 87 John Bacon 49 31 63.3% 2526 89 Todd Tichenor 68 45 66.2% 5038 90 Andy Fletcher 62 44 71.0% 3928 91 CB Bucknor 9 7 77.8% 674
