Jun 19, 2026, 12:35 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 Thursday, June 18.
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 Derek Thomas 45 16 35.6% 2982 5 David Rackley 57 23 40.4% 4691 6 James Hoye 52 21 40.4% 3897 7 Scott Barry 47 19 40.4% 4009 8 Erich Bacchus 46 19 41.3% 4280 9 Mark Ripperger 58 24 41.4% 4246 10 James Jean 53 22 41.5% 4439 11 Alex Tosi 48 20 41.7% 4169 11 Emil Jimenez 48 20 41.7% 3529 11 Edwin Jimenez 24 10 41.7% 2181 14 Jonathan Parra 32 14 43.8% 2487 15 Nic Lentz 61 27 44.3% 4230 16 John Libka 38 17 44.7% 3782 17 John Tumpane 58 26 44.8% 4299 18 Tyler Jones 40 18 45.0% 2540 19 Ryan Additon 66 30 45.5% 4222 20 Chris Conroy 48 22 45.8% 3755 20 Shane Livensparger 48 22 45.8% 3440 22 Jansen Visconti 50 23 46.0% 3727 22 Nate Tomlinson 50 23 46.0% 4436 24 Austin Jones 41 19 46.3% 2754 25 Vic Carapazza 56 26 46.4% 4463 25 Steven Jaschinski 28 13 46.4% 1731 27 Adam Beck 62 29 46.8% 4185 28 Quinn Wolcott 63 30 47.6% 4392 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 Nick Mahrley 35 18 51.4% 2999 39 Jeremie Rehak 56 29 51.8% 3599 40 Junior Valentine 52 27 51.9% 3808 40 Ryan Wills 52 27 51.9% 3743 42 Tripp Gibson 50 26 52.0% 4270 43 D.J. Reyburn 51 27 52.9% 3419 43 Mike Muchlinski 51 27 52.9% 4114 45 Bruce Dreckman 64 34 53.1% 4377 46 Ryan Blakney 56 30 53.6% 4074 46 Brennan Miller 56 30 53.6% 4228 48 Brian O'Nora 41 22 53.7% 2830 49 Lance Barksdale 59 32 54.2% 4128 50 Alan Porter 55 30 54.5% 3598 51 Roberto Ortiz 53 29 54.7% 3606 52 Chris Guccione 76 42 55.3% 4565 53 Paul Clemons 47 26 55.3% 4005 54 Chad Fairchild 61 34 55.7% 4104 55 Malachi Moore 68 38 55.9% 4542 56 Laz Diaz 73 41 56.2% 4476 57 Bill Miller 64 36 56.3% 4514 57 Cory Blaser 48 27 56.3% 3360 57 Charlie Ramos 48 27 56.3% 2597 60 Sean Barber 62 35 56.5% 3790 61 Ben May 46 26 56.5% 3965 61 Jen Pawol 46 26 56.5% 2653 63 Alex MacKay 54 31 57.4% 3740 64 Marvin Hudson 40 23 57.5% 3347 65 Chad Whitson 52 30 57.7% 3693 66 Mike Estabrook 57 33 57.9% 4165 67 Gabe Morales 50 29 58.0% 3556 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 Manny Gonzalez 73 45 61.6% 4362 79 Hunter Wendelstedt 66 41 62.1% 3598 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 Stu Scheurwater 63 41 65.1% 3883 86 Jacob Metz 43 28 65.1% 2320 87 Clint Vondrak 41 27 65.9% 3471 88 Brian Walsh 59 39 66.1% 3723 89 Todd Tichenor 52 36 69.2% 3887 90 Andy Fletcher 40 29 72.5% 2790 91 CB Bucknor 9 7 77.8% 674
