Aug 12, 2026, 01:18 AM 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 Tuesday, August 11.
Batter ABS Challenge Leaders Catcher ABS Challenge Leaders MLB Team ABS Challenge Rankings Umpire ABS Challenge Leaders Rank Name Challenged Overturned Overturn% P 1 Dillon Wilson 22 7 31.8% 2281 2 Derek Thomas 71 26 36.6% 5091 3 Edwin Jimenez 28 11 39.3% 2458 4 James Jean 70 28 40.0% 5641 5 John Libka 64 26 40.6% 5778 6 Mark Ripperger 97 40 41.2% 6965 7 Jansen Visconti 77 32 41.6% 6013 8 Louie Krupa 48 20 41.7% 3275 9 Dexter Kelley 67 28 41.8% 4389 10 Steven Jaschinski 53 23 43.4% 3337 11 Erich Bacchus 69 30 43.5% 6535 12 David Rackley 78 34 43.6% 6249 13 Austin Jones 59 26 44.1% 4685 14 Jonathan Parra 47 21 44.7% 3407 15 Ryan Additon 111 50 45.0% 7128 16 Alex Tosi 83 38 45.8% 6215 17 Nic Lentz 102 47 46.1% 6892 18 Scott Barry 74 35 47.3% 5781 19 Adam Hamari 78 37 47.4% 7125 21 Will Little 103 49 47.6% 6983 20 Emil Jimenez 82 39 47.6% 6107 22 Edwin Moscoso 94 45 47.9% 6328 23 Chris Conroy 83 40 48.2% 6485 24 Shane Livensparger 78 38 48.7% 5450 25 D.J. Reyburn 86 42 48.8% 5708 26 Mark Wegner 96 47 49.0% 6876 27 Vic Carapazza 89 44 49.4% 7137 29 Nestor Ceja 105 52 49.5% 7221 28 Adam Beck 103 51 49.5% 6888 30 Alan Porter 92 46 50.0% 6093 30 Tripp Gibson 82 41 50.0% 6552 32 Ryan Wills 101 51 50.5% 6487 33 Quinn Wolcott 99 50 50.5% 7047 34 Jeremie Rehak 85 43 50.6% 5756 35 Gabe Morales 77 39 50.6% 6073 36 Nick Mahrley 71 36 50.7% 6085 38 James Hoye 101 52 51.5% 6384 37 Carlos Torres 68 35 51.5% 5895 39 Dan Merzel 95 49 51.6% 6542 40 Tom Hanahan 89 46 51.7% 6385 41 Nate Tomlinson 79 41 51.9% 6519 42 Ryan Blakney 73 38 52.1% 5121 43 Chad Fairchild 89 47 52.8% 6398 44 Mike Muchlinski 85 45 52.9% 7082 45 Jim Wolf 94 50 53.2% 5913 46 Junior Valentine 77 41 53.2% 5919 47 Doug Eddings 90 48 53.3% 6633 48 Ron Kulpa 80 43 53.8% 4817 49 Lance Barrett 120 65 54.2% 7079 50 Tyler Jones 73 40 54.8% 4830 51 Ramon De Jesus 97 54 55.7% 5739 51 Alex MacKay 97 54 55.7% 6425 53 Brock Ballou 79 44 55.7% 4644 54 Brian O'Nora 70 39 55.7% 4613 55 Malachi Moore 116 65 56.0% 7241 56 Chris Guccione 105 59 56.2% 6471 57 Ben May 71 40 56.3% 5989 58 Brennan Miller 94 53 56.4% 6803 58 Willie Traynor 94 53 56.4% 7636 60 Paul Clemons 90 51 56.7% 6647 61 Alfonso Márquez 97 55 56.7% 6307 61 John Tumpane 97 55 56.7% 6378 63 Jordan Baker 95 54 56.8% 6275 63 Charlie Ramos 95 54 56.8% 5005 65 Hunter Wendelstedt 112 64 57.1% 6260 65 Jacob Metz 70 40 57.1% 4069 65 Clint Vondrak 84 48 57.1% 6277 65 Jen Pawol 56 32 57.1% 3209 69 Sean Barber 106 61 57.5% 6195 70 Bruce Dreckman 104 60 57.7% 6487 71 John Bacon 71 41 57.7% 3851 72 Chad Whitson 88 51 58.0% 6128 73 Dan Bellino 103 61 59.2% 6969 73 Laz Diaz 103 61 59.2% 6609 75 Marvin Hudson 67 40 59.7% 5035 76 Lance Barksdale 102 61 59.8% 6686 76 Brian Walsh 102 61 59.8% 6144 78 Bill Miller 98 59 60.2% 6569 78 Mike Estabrook 98 59 60.2% 6334 80 Rob Drake 83 50 60.2% 6589 81 Cory Blaser 94 58 61.7% 5935 82 Chris Segal 105 65 61.9% 6250 83 Roberto Ortiz 96 60 62.5% 6104 83 Felix Neon 40 25 62.5% 1782 85 Dan Iassogna 110 69 62.7% 6759 86 Manny Gonzalez 96 61 63.5% 6024 87 Todd Tichenor 83 53 63.9% 6478 88 Adrian Johnson 79 51 64.6% 4615 89 Stu Scheurwater 102 66 64.7% 6439 90 Andy Fletcher 74 54 73.0% 4579 91 CB Bucknor 9 7 77.8% 674
