May 17, 2026, 10:46 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 Sunday, May 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 3 0 0.0% 551 2 Louie Krupa 4 1 25.0% 264 3 Derek Thomas 23 6 26.1% 1718 3 Emil Jimenez 23 6 26.1% 1947 5 John Tumpane 29 8 27.6% 2557 6 Edwin Jimenez 10 3 30.0% 1199 7 Dexter Kelley 27 9 33.3% 1832 8 David Rackley 34 13 38.2% 2670 9 Erich Bacchus 23 9 39.1% 2469 10 Tyler Jones 20 8 40.0% 1405 11 Lance Barksdale 37 15 40.5% 2637 12 Nic Lentz 51 21 41.2% 3098 12 Mark Ripperger 34 14 41.2% 2743 12 Adam Beck 34 14 41.2% 2720 15 Will Little 45 19 42.2% 2947 16 Shane Livensparger 34 15 44.1% 2539 17 James Hoye 36 16 44.4% 2725 18 Austin Jones 29 13 44.8% 1855 19 Edwin Moscoso 40 18 45.0% 2700 20 Brennan Miller 26 12 46.2% 2386 21 Ryan Additon 41 19 46.3% 2712 22 Jansen Visconti 28 13 46.4% 2291 22 John Libka 28 13 46.4% 2542 22 Jordan Baker 28 13 46.4% 2256 25 Alan Porter 30 14 46.7% 2200 26 Scott Barry 32 15 46.9% 2610 27 Jeremie Rehak 34 16 47.1% 2417 27 Alex Tosi 34 16 47.1% 2421 27 Steven Jaschinski 17 8 47.1% 892 30 Nate Tomlinson 25 12 48.0% 2388 31 James Jean 27 13 48.1% 2343 32 Quinn Wolcott 39 19 48.7% 3022 33 Malachi Moore 38 19 50.0% 2968 33 Gabe Morales 30 15 50.0% 2233 33 Adam Hamari 24 12 50.0% 2327 33 Ben May 24 12 50.0% 2153 37 Vic Carapazza 41 21 51.2% 3350 38 Dan Merzel 33 17 51.5% 2322 39 Chris Conroy 36 19 52.8% 2726 40 Tripp Gibson 30 16 53.3% 2434 41 Bruce Dreckman 43 23 53.5% 2641 42 Brian O'Nora 41 22 53.7% 2829 43 Bill Miller 39 21 53.8% 2990 43 Jonathan Parra 13 7 53.8% 989 46 Dan Bellino 46 25 54.3% 2850 45 Sean Barber 35 19 54.3% 2382 47 D.J. Reyburn 33 18 54.5% 2077 47 Alex MacKay 33 18 54.5% 2426 49 Nestor Ceja 29 16 55.2% 2185 50 Mark Wegner 27 15 55.6% 2468 50 Jen Pawol 9 5 55.6% 601 52 Chad Fairchild 34 19 55.9% 2620 52 Adrian Johnson 34 19 55.9% 2028 54 Cory Blaser 32 18 56.3% 2248 54 Carlos Torres 32 18 56.3% 2547 56 Rob Drake 39 22 56.4% 2563 57 Laz Diaz 46 26 56.5% 2837 58 Ramon De Jesus 30 17 56.7% 1768 59 Chris Guccione 37 21 56.8% 2329 59 Mike Muchlinski 37 21 56.8% 2966 59 Ryan Blakney 37 21 56.8% 2555 62 Manny Gonzalez 51 29 56.9% 2968 63 Jim Wolf 28 16 57.1% 2046 63 Dan Iassogna 42 24 57.1% 2662 63 Charlie Ramos 42 24 57.1% 2286 66 Tom Hanahan 40 23 57.5% 2680 67 Stu Scheurwater 31 18 58.1% 2372 67 Brock Ballou 31 18 58.1% 2039 69 Roberto Ortiz 43 25 58.1% 2797 70 Lance Barrett 48 28 58.3% 2913 71 Ryan Wills 39 23 59.0% 2588 72 Nick Mahrley 22 13 59.1% 1790 73 Junior Valentine 32 19 59.4% 2402 74 Chad Whitson 37 22 59.5% 2320 75 Marvin Hudson 26 16 61.5% 2209 76 Todd Tichenor 24 15 62.5% 2164 77 Alfonso Márquez 27 17 63.0% 2318 78 Mike Estabrook 36 23 63.9% 2657 79 Paul Clemons 28 18 64.3% 2268 80 Clint Vondrak 17 11 64.7% 1956 81 Doug Eddings 37 24 64.9% 2490 82 Hunter Wendelstedt 53 35 66.0% 2803 83 Jacob Metz 30 20 66.7% 1503 84 John Bacon 40 27 67.5% 1662 85 Willie Traynor 31 21 67.7% 2518 86 Brian Walsh 38 26 68.4% 2251 87 Chris Segal 48 35 72.9% 2702 88 Ron Kulpa 21 16 76.2% 924 89 Andy Fletcher 35 27 77.1% 2469 90 CB Bucknor 9 7 77.8% 674 91 Felix Neon 15 12 80.0% 578
