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 Monday, September 7.
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 23 7 30.4% 2577 2 Derek Thomas 82 31 37.8% 5708 3 Louie Krupa 58 22 37.9% 4212 4 Jansen Visconti 87 35 40.2% 6892 5 Dexter Kelley 97 40 41.2% 6165 6 Steven Jaschinski 67 28 41.8% 4471 7 Ryan Additon 126 55 43.7% 8262 8 Austin Jones 63 28 44.4% 5244 9 Mark Ripperger 120 54 45.0% 8478 10 David Rackley 95 43 45.3% 7151 11 Erich Bacchus 88 40 45.5% 8218 12 Nestor Ceja 118 54 45.8% 8506 13 Edwin Jimenez 61 28 45.9% 4168 14 James Jean 87 40 46.0% 6776 15 Shane Livensparger 112 52 46.4% 7296 17 Nic Lentz 122 57 46.7% 8666 16 Jonathan Parra 60 28 46.7% 4349 19 D.J. Reyburn 104 49 47.1% 6835 18 Adam Hamari 85 40 47.1% 8275 20 John Libka 93 44 47.3% 7280 21 Alex Tosi 100 48 48.0% 7382 22 Quinn Wolcott 112 55 49.1% 8187 23 Will Little 126 62 49.2% 8192 25 Gabe Morales 99 49 49.5% 7445 24 Nate Tomlinson 95 47 49.5% 7973 26 Vic Carapazza 114 57 50.0% 9061 26 Emil Jimenez 110 55 50.0% 7678 28 James Hoye 127 64 50.4% 7977 29 Adam Beck 117 59 50.4% 7796 30 Mark Wegner 109 55 50.5% 8002 31 Jeremie Rehak 93 47 50.5% 6355 32 Nick Mahrley 87 44 50.6% 7269 33 Ryan Wills 122 62 50.8% 7746 34 Scott Barry 102 52 51.0% 7355 34 Chris Conroy 102 52 51.0% 7666 36 Tripp Gibson 109 56 51.4% 8050 37 Chad Fairchild 105 54 51.4% 7565 38 Dan Merzel 124 64 51.6% 8121 39 Jim Wolf 122 64 52.5% 7354 41 Edwin Moscoso 118 62 52.5% 7488 40 Mike Muchlinski 101 53 52.5% 8263 42 Carlos Torres 79 42 53.2% 6787 44 Tom Hanahan 114 61 53.5% 7573 43 Junior Valentine 86 46 53.5% 6479 46 Paul Clemons 104 56 53.8% 7752 45 Ben May 93 50 53.8% 7519 47 Brennan Miller 115 62 53.9% 8024 48 Alan Porter 126 68 54.0% 7659 49 John Bacon 85 46 54.1% 4464 50 Ron Kulpa 94 51 54.3% 6250 51 Chris Guccione 129 70 54.3% 7967 52 Jacob Metz 88 48 54.5% 5596 53 Alfonso Márquez 129 71 55.0% 7813 54 Alex MacKay 112 62 55.4% 7718 55 Ramon De Jesus 110 61 55.5% 6888 56 Brian O'Nora 70 39 55.7% 4613 57 Todd Tichenor 102 57 55.9% 7690 58 Willie Traynor 109 61 56.0% 9008 59 Tyler Jones 100 56 56.0% 6050 60 Malachi Moore 140 79 56.4% 8411 61 Lance Barrett 145 82 56.6% 8242 62 Jordan Baker 102 58 56.9% 6877 63 Brock Ballou 93 53 57.0% 5481 64 Lance Barksdale 120 69 57.5% 7803 65 Brian Walsh 119 69 58.0% 7253 66 Ryan Blakney 98 57 58.2% 6397 66 Chad Whitson 98 57 58.2% 7035 68 John Tumpane 110 64 58.2% 7476 69 Bruce Dreckman 109 64 58.7% 7352 70 Hunter Wendelstedt 160 94 58.8% 8361 71 Dan Bellino 124 73 58.9% 8103 71 Laz Diaz 124 73 58.9% 8090 73 Doug Eddings 112 66 58.9% 7908 74 Clint Vondrak 105 62 59.0% 7677 75 Chris Segal 120 71 59.2% 7547 76 Marvin Hudson 81 48 59.3% 5930 77 Bill Miller 118 70 59.3% 7783 78 Charlie Ramos 114 68 59.6% 6191 79 Sean Barber 134 80 59.7% 7349 80 Jen Pawol 60 36 60.0% 3451 81 Mike Estabrook 123 74 60.2% 7578 82 Stu Scheurwater 126 77 61.1% 7955 83 Cory Blaser 114 70 61.4% 7153 84 Roberto Ortiz 109 67 61.5% 7177 85 Felix Neon 45 28 62.2% 2097 86 Rob Drake 106 66 62.3% 7770 87 Dan Iassogna 136 85 62.5% 8052 88 Manny Gonzalez 126 80 63.5% 7426 89 Adrian Johnson 111 71 64.0% 6353 90 Andy Fletcher 97 67 69.1% 5705 91 CB Bucknor 9 7 77.8% 674
