Jun 25, 2026, 01:46 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 Wednesday, June 24.
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 13 4 30.8% 1453 2 Derek Thomas 48 16 33.3% 3311 2 Dexter Kelley 36 12 33.3% 2451 2 Louie Krupa 33 11 33.3% 2028 5 David Rackley 57 23 40.4% 4691 6 Scott Barry 47 19 40.4% 4299 7 Emil Jimenez 49 20 40.8% 3823 8 Erich Bacchus 46 19 41.3% 4280 9 Alex Tosi 48 20 41.7% 4169 9 Edwin Jimenez 24 10 41.7% 2181 11 James Jean 55 23 41.8% 4685 12 Mark Ripperger 64 27 42.2% 4541 13 John Libka 42 18 42.9% 4057 14 Jonathan Parra 32 14 43.8% 2487 15 Nic Lentz 63 28 44.4% 4526 15 Austin Jones 45 20 44.4% 3062 17 Adam Beck 67 30 44.8% 4504 18 John Tumpane 58 26 44.8% 4299 19 Jansen Visconti 55 25 45.5% 4012 20 James Hoye 59 27 45.8% 4610 21 Chris Conroy 52 24 46.2% 3995 21 Shane Livensparger 52 24 46.2% 3721 21 Nate Tomlinson 52 24 46.2% 4690 24 Will Little 69 32 46.4% 4760 25 Quinn Wolcott 66 31 47.0% 4671 26 Jordan Baker 53 25 47.2% 4264 27 Dan Merzel 59 28 47.5% 4216 28 Tom Hanahan 63 30 47.6% 4511 29 Tripp Gibson 58 28 48.3% 4904 30 Ryan Additon 80 39 48.8% 4810 31 Tyler Jones 47 23 48.9% 2816 32 Adam Hamari 51 25 49.0% 4668 32 Carlos Torres 51 25 49.0% 4289 34 Nestor Ceja 61 30 49.2% 4504 35 Mark Wegner 62 31 50.0% 4802 35 Vic Carapazza 62 31 50.0% 5000 35 Nick Mahrley 42 21 50.0% 3334 38 D.J. Reyburn 59 30 50.8% 3947 39 Steven Jaschinski 33 17 51.5% 1989 40 Jeremie Rehak 61 32 52.5% 3856 40 Brennan Miller 61 32 52.5% 4504 42 Ryan Blakney 59 31 52.5% 4310 43 Alan Porter 57 30 52.6% 3868 44 Ryan Wills 55 29 52.7% 4021 45 Bruce Dreckman 66 35 53.0% 4680 45 Sean Barber 66 35 53.0% 4102 47 Junior Valentine 58 31 53.4% 4164 48 Brian O'Nora 41 22 53.7% 2830 49 Edwin Moscoso 59 32 54.2% 4072 50 Roberto Ortiz 53 29 54.7% 3606 51 Cory Blaser 51 28 54.9% 3656 51 Ben May 51 28 54.9% 4224 53 Chris Guccione 76 42 55.3% 4565 54 Chad Fairchild 61 34 55.7% 4104 55 Laz Diaz 77 43 55.8% 4785 56 Mike Muchlinski 59 33 55.9% 4655 57 Paul Clemons 50 28 56.0% 4284 58 Jen Pawol 46 26 56.5% 2653 59 Bill Miller 72 41 56.9% 4830 60 Malachi Moore 75 43 57.3% 4882 61 Doug Eddings 61 35 57.4% 4563 62 Gabe Morales 54 31 57.4% 3814 63 Marvin Hudson 40 23 57.5% 3347 64 Mike Estabrook 57 33 57.9% 4165 65 Charlie Ramos 55 32 58.2% 2882 66 Dan Bellino 67 39 58.2% 4578 67 Chad Whitson 60 35 58.3% 4281 68 Brock Ballou 41 24 58.5% 2878 69 Alex MacKay 58 34 58.6% 4029 70 Lance Barksdale 68 40 58.8% 4417 71 Rob Drake 64 38 59.4% 4526 72 Willie Traynor 52 31 59.6% 4705 73 Lance Barrett 77 46 59.7% 4653 74 Adrian Johnson 45 27 60.0% 2788 74 Clint Vondrak 50 30 60.0% 3966 76 Alfonso Márquez 51 31 60.8% 3885 76 Jacob Metz 51 31 60.8% 2914 78 Jim Wolf 54 33 61.1% 3479 79 Manny Gonzalez 73 45 61.6% 4362 80 Ramon De Jesus 63 39 61.9% 3497 81 Hunter Wendelstedt 79 49 62.0% 4158 82 Ron Kulpa 45 28 62.2% 2622 83 Felix Neon 27 17 63.0% 1186 84 Chris Segal 65 41 63.1% 4127 85 John Bacon 49 31 63.3% 2526 86 Dan Iassogna 75 48 64.0% 4499 87 Brian Walsh 64 41 64.1% 4110 88 Stu Scheurwater 71 46 64.8% 4478 89 Todd Tichenor 58 40 69.0% 4178 90 Andy Fletcher 40 29 72.5% 2790 91 CB Bucknor 9 7 77.8% 674
