Sep 10, 2026, 11:06 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 Thursday, September 10.
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 Jansen Visconti 91 37 40.7% 7116 4 Steven Jaschinski 71 29 40.8% 4743 5 Louie Krupa 61 25 41.0% 4497 6 Dexter Kelley 97 40 41.2% 6165 7 Austin Jones 63 28 44.4% 5244 8 Ryan Additon 132 59 44.7% 8594 9 Mark Ripperger 120 54 45.0% 8478 10 David Rackley 97 44 45.4% 7439 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 16 Nic Lentz 122 57 46.7% 8666 17 Adam Hamari 92 43 46.7% 8588 18 D.J. Reyburn 104 49 47.1% 6835 19 John Libka 96 46 47.9% 7561 20 Alex Tosi 100 48 48.0% 7382 21 Quinn Wolcott 112 55 49.1% 8187 23 Will Little 130 64 49.2% 8475 22 Jonathan Parra 63 31 49.2% 4597 25 Gabe Morales 99 49 49.5% 7445 24 Nate Tomlinson 95 47 49.5% 7973 26 Vic Carapazza 119 59 49.6% 9318 27 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 99 50 50.5% 6611 32 Nick Mahrley 87 44 50.6% 7269 33 Ryan Wills 124 63 50.8% 8107 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 Mike Muchlinski 104 54 51.9% 8574 40 Junior Valentine 90 47 52.2% 6733 41 Edwin Moscoso 118 62 52.5% 7488 42 Jim Wolf 128 68 53.1% 7654 43 Tom Hanahan 114 61 53.5% 7573 45 Paul Clemons 104 56 53.8% 7752 44 Ben May 93 50 53.8% 7519 46 Brennan Miller 115 62 53.9% 8024 47 Alan Porter 126 68 54.0% 7659 48 Carlos Torres 85 46 54.1% 7066 48 John Bacon 85 46 54.1% 4464 50 Ron Kulpa 94 51 54.3% 6250 51 Chris Guccione 129 70 54.3% 7967 52 Alex MacKay 114 62 54.4% 7976 53 Jacob Metz 88 48 54.5% 5596 54 Alfonso Márquez 129 71 55.0% 7813 55 Ramon De Jesus 110 61 55.5% 6888 56 Malachi Moore 144 80 55.6% 8796 57 Willie Traynor 115 64 55.7% 9261 58 Brian O'Nora 70 39 55.7% 4613 59 Todd Tichenor 105 59 56.2% 7957 59 Tyler Jones 105 59 56.2% 6368 61 Jordan Baker 106 60 56.6% 7211 62 Brock Ballou 97 55 56.7% 5787 63 Lance Barksdale 120 69 57.5% 7803 64 Brian Walsh 119 69 58.0% 7253 65 Ryan Blakney 98 57 58.2% 6397 65 Chad Whitson 98 57 58.2% 7035 67 John Tumpane 110 64 58.2% 7476 68 Lance Barrett 151 88 58.3% 8550 69 Charlie Ramos 118 69 58.5% 6501 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 Clint Vondrak 105 62 59.0% 7677 74 Chris Segal 120 71 59.2% 7547 75 Marvin Hudson 81 48 59.3% 5930 76 Bill Miller 123 73 59.3% 8044 77 Sean Barber 138 82 59.4% 7629 78 Roberto Ortiz 114 68 59.6% 7475 79 Doug Eddings 117 70 59.8% 8170 80 Jen Pawol 60 36 60.0% 3451 81 Bruce Dreckman 114 69 60.5% 7680 82 Dan Iassogna 141 86 61.0% 8361 83 Stu Scheurwater 126 77 61.1% 7955 84 Mike Estabrook 129 79 61.2% 7865 85 Cory Blaser 114 70 61.4% 7153 86 Felix Neon 45 28 62.2% 2097 87 Manny Gonzalez 130 81 62.3% 7750 88 Rob Drake 110 69 62.7% 8035 89 Adrian Johnson 111 71 64.0% 6353 90 Andy Fletcher 103 71 68.9% 5975 91 CB Bucknor 9 7 77.8% 674
