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, June 17.
Batter ABS Challenge Leaders Catcher ABS Challenge Leaders MLB Team ABS Challenge Rankings Umpire ABS Challenge Leaders Rank UmpireName Chal ChalW Chal% P 1 Dillon Wilson 10 3 30.0% 1152 2 Dexter Kelley 36 12 33.3% 2451 2 Louie Krupa 33 11 33.3% 2028 4 Tyler Jones 31 11 35.5% 2310 5 Derek Thomas 45 16 35.6% 2982 6 David Rackley 57 23 40.4% 4691 7 James Hoye 52 21 40.4% 3897 8 Scott Barry 47 19 40.4% 4009 9 Erich Bacchus 46 19 41.3% 4280 10 Mark Ripperger 58 24 41.4% 4246 11 James Jean 53 22 41.5% 4439 12 Alex Tosi 48 20 41.7% 4169 12 Emil Jimenez 48 20 41.7% 3529 12 Edwin Jimenez 24 10 41.7% 2181 15 Jonathan Parra 32 14 43.8% 2487 16 Nic Lentz 61 27 44.3% 4230 17 John Libka 38 17 44.7% 3782 18 John Tumpane 58 26 44.8% 4299 19 Ryan Additon 66 30 45.5% 4222 20 Chris Conroy 48 22 45.8% 3755 21 Jansen Visconti 50 23 46.0% 3727 21 Nate Tomlinson 50 23 46.0% 4436 23 Austin Jones 41 19 46.3% 2754 24 Vic Carapazza 56 26 46.4% 4463 24 Steven Jaschinski 28 13 46.4% 1731 26 Adam Beck 62 29 46.8% 4185 27 Quinn Wolcott 63 30 47.6% 4392 28 Shane Livensparger 44 21 47.7% 3140 29 Will Little 62 30 48.4% 4193 31 Carlos Torres 51 25 49.0% 4069 30 Jordan Baker 49 24 49.0% 3992 32 Mark Wegner 59 29 49.2% 4479 33 Tom Hanahan 60 30 50.0% 4247 33 Dan Merzel 50 25 50.0% 3496 33 Adam Hamari 48 24 50.0% 4025 36 Nestor Ceja 57 29 50.9% 4196 37 Edwin Moscoso 55 28 50.9% 3846 38 Ryan Blakney 49 25 51.0% 3723 39 Nick Mahrley 35 18 51.4% 2999 40 Jeremie Rehak 56 29 51.8% 3599 41 Junior Valentine 52 27 51.9% 3808 41 Ryan Wills 52 27 51.9% 3743 43 Tripp Gibson 50 26 52.0% 4270 44 D.J. Reyburn 51 27 52.9% 3419 44 Mike Muchlinski 51 27 52.9% 4114 46 Bruce Dreckman 64 34 53.1% 4377 47 Brennan Miller 56 30 53.6% 4228 48 Brian O'Nora 41 22 53.7% 2830 49 Alan Porter 55 30 54.5% 3598 50 Lance Barksdale 53 29 54.7% 3778 50 Roberto Ortiz 53 29 54.7% 3606 52 Chris Guccione 76 42 55.3% 4565 53 Gabe Morales 47 26 55.3% 3317 53 Paul Clemons 47 26 55.3% 4005 55 Chad Fairchild 61 34 55.7% 4104 56 Malachi Moore 68 38 55.9% 4542 57 Laz Diaz 73 41 56.2% 4476 58 Bill Miller 64 36 56.3% 4514 58 Cory Blaser 48 27 56.3% 3360 58 Charlie Ramos 48 27 56.3% 2597 61 Sean Barber 62 35 56.5% 3790 62 Ben May 46 26 56.5% 3965 62 Jen Pawol 46 26 56.5% 2653 64 Alex MacKay 54 31 57.4% 3740 65 Marvin Hudson 40 23 57.5% 3347 66 Chad Whitson 52 30 57.7% 3693 67 Mike Estabrook 55 32 58.2% 3839 68 Adrian Johnson 41 24 58.5% 2550 68 Brock Ballou 41 24 58.5% 2878 70 Lance Barrett 71 42 59.2% 4333 71 Doug Eddings 54 32 59.3% 3920 72 Dan Bellino 64 38 59.4% 3982 73 Ramon De Jesus 57 34 59.6% 3229 74 Jim Wolf 48 29 60.4% 3210 75 Rob Drake 61 37 60.7% 4250 76 Alfonso Márquez 51 31 60.8% 3885 76 Willie Traynor 51 31 60.8% 4436 78 Hunter Wendelstedt 66 41 62.1% 3598 79 Manny Gonzalez 69 43 62.3% 4124 80 Felix Neon 27 17 63.0% 1186 81 John Bacon 49 31 63.3% 2526 82 Ron Kulpa 41 26 63.4% 2357 83 Dan Iassogna 69 44 63.8% 4182 84 Chris Segal 62 40 64.5% 3846 85 Brian Walsh 54 35 64.8% 3388 86 Stu Scheurwater 63 41 65.1% 3883 87 Jacob Metz 43 28 65.1% 2320 88 Clint Vondrak 41 27 65.9% 3471 89 Todd Tichenor 52 36 69.2% 3887 90 Andy Fletcher 40 29 72.5% 2790 91 CB Bucknor 9 7 77.8% 674
