Sep 16, 2026, 01:26 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, September 15.
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 86 34 39.5% 5987 3 Steven Jaschinski 75 30 40.0% 5049 4 Louie Krupa 61 25 41.0% 4497 5 Dexter Kelley 97 40 41.2% 6165 6 Jansen Visconti 94 39 41.5% 7418 7 Mark Ripperger 126 55 43.7% 8796 8 Edwin Jimenez 64 28 43.8% 4465 9 Ryan Additon 132 59 44.7% 8594 10 Austin Jones 67 30 44.8% 5575 11 Erich Bacchus 92 42 45.7% 8586 12 Nestor Ceja 120 55 45.8% 8818 13 D.J. Reyburn 108 50 46.3% 7135 14 Shane Livensparger 112 52 46.4% 7296 15 Alex Tosi 107 50 46.7% 7969 16 Nic Lentz 129 61 47.3% 9006 17 James Jean 93 44 47.3% 7074 18 David Rackley 107 51 47.7% 7758 19 Quinn Wolcott 115 55 47.8% 8481 20 Adam Hamari 99 48 48.5% 8871 20 John Libka 99 48 48.5% 7855 22 Emil Jimenez 112 55 49.1% 7930 24 Will Little 130 64 49.2% 8475 23 Jonathan Parra 63 31 49.2% 4597 26 Gabe Morales 101 50 49.5% 7784 25 Nate Tomlinson 95 47 49.5% 7973 27 Vic Carapazza 119 59 49.6% 9318 28 James Hoye 134 67 50.0% 8260 28 Mark Wegner 112 56 50.0% 8270 28 Chad Fairchild 108 54 50.0% 7851 31 Chris Conroy 102 52 51.0% 7666 32 Tripp Gibson 111 57 51.4% 8353 33 Jeremie Rehak 105 54 51.4% 6938 34 Adam Beck 126 65 51.6% 8439 35 Dan Merzel 124 64 51.6% 8121 35 Junior Valentine 93 48 51.6% 7030 37 Ryan Wills 131 68 51.9% 8404 38 Mike Muchlinski 104 54 51.9% 8574 39 Nick Mahrley 92 48 52.2% 7570 40 Scott Barry 107 56 52.3% 7670 41 Edwin Moscoso 123 65 52.8% 7789 42 Tom Hanahan 117 62 53.0% 7832 43 Jim Wolf 131 70 53.4% 7909 44 Ben May 93 50 53.8% 7519 45 John Bacon 85 46 54.1% 4464 46 Brennan Miller 120 65 54.2% 8320 47 Chris Guccione 129 70 54.3% 7967 47 Alan Porter 129 70 54.3% 7948 49 Alex MacKay 116 63 54.3% 8201 50 Alfonso Márquez 137 75 54.7% 8149 51 Carlos Torres 91 50 54.9% 7363 52 Paul Clemons 111 61 55.0% 8047 53 Willie Traynor 118 65 55.1% 9511 54 Ron Kulpa 98 54 55.1% 6544 55 Ramon De Jesus 110 61 55.5% 6888 56 Jacob Metz 97 54 55.7% 6148 57 Brian O'Nora 70 39 55.7% 4613 58 Todd Tichenor 113 63 55.8% 8258 59 Tyler Jones 105 59 56.2% 6368 60 Ryan Blakney 104 59 56.7% 6738 61 Jordan Baker 111 63 56.8% 7499 61 Malachi Moore 148 84 56.8% 9056 63 Lance Barksdale 125 71 56.8% 8061 64 Brock Ballou 105 61 58.1% 6097 65 Chad Whitson 101 59 58.4% 7306 66 Brian Walsh 128 75 58.6% 7801 67 John Tumpane 116 68 58.6% 7785 68 Doug Eddings 121 71 58.7% 8447 69 Hunter Wendelstedt 167 98 58.7% 8683 70 Laz Diaz 124 73 58.9% 8090 71 Bruce Dreckman 120 71 59.2% 7986 71 Chris Segal 120 71 59.2% 7547 71 Charlie Ramos 120 71 59.2% 6814 74 Marvin Hudson 81 48 59.3% 5930 75 Lance Barrett 155 92 59.4% 8816 76 Bill Miller 129 77 59.7% 8301 76 Dan Bellino 129 77 59.7% 8398 78 Sean Barber 144 86 59.7% 7922 79 Clint Vondrak 107 64 59.8% 7972 80 Roberto Ortiz 117 70 59.8% 7766 81 Stu Scheurwater 132 79 59.8% 8280 82 Jen Pawol 60 36 60.0% 3451 83 Dan Iassogna 144 87 60.4% 8650 84 Mike Estabrook 135 82 60.7% 8127 85 Manny Gonzalez 133 81 60.9% 8031 86 Felix Neon 45 28 62.2% 2097 87 Cory Blaser 118 74 62.7% 7464 88 Rob Drake 114 72 63.2% 8305 89 Adrian Johnson 111 71 64.0% 6353 90 Andy Fletcher 109 75 68.8% 6327 91 CB Bucknor 9 7 77.8% 674
