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, June 16.
Batter ABS Challenge Leaders
Rank PlayerName Team BatChallSuccess BatChallenges BatChallSuccess% 1 Sal Stewart CIN 20 30 66.7% 2 Kevin McGonigle DET 12 17 70.6% 3 Jose Altuve HOU 10 15 66.7% 3 Maikel Garcia KC 10 17 58.8% 3 Jose Caballero NYY 10 17 58.8% 6 Davis Schneider TOR 9 12 75.0% 6 Xander Bogaerts SD 9 13 69.2% 6 Kyle Schwarber PHI 9 14 64.3% 6 Ivan Herrera STL 9 15 60.0% 10 Josh Bell MIN 8 12 66.7% 10 Bryan Reynolds PIT 8 14 57.1% 10 Mark Vientos NYM 8 14 57.1% 10 Munetaka Murakami CWS 8 15 53.3% 10 Austin Martin MIN 8 16 50.0% 10 Bryce Harper PHI 8 17 47.1% 10 Gary Sanchez MIL 8 19 42.1% 17 CJ Abrams WSH 7 7 100.0% 17 Nick Kurtz ATH 7 9 77.8% 17 Teoscar Hernandez LAD 7 10 70.0% 17 Brent Rooker ATH 7 10 70.0% 17 Christian Walker HOU 7 11 63.6% 17 Brayan Rocchio CLE 7 11 63.6% 17 Samuel Basallo BAL 7 12 58.3% 17 Zach Neto LAA 7 14 50.0% 17 Luke Keaschall MIN 7 15 46.7% 17 Ronald Acuna Jr. ATL 7 16 43.8% 17 Cam Smith HOU 7 17 41.2%
Catcher ABS Challenge Leaders
Rank PlayerName Team CatChallSuccess CatChallenges CatChallSuccess% 1 William Contreras MIL 52 90 57.8% 2 Tyler Stephenson CIN 42 59 71.2% 3 Salvador Perez KC 36 50 72.0% 3 Nick Fortes TB 36 60 60.0% 3 Shea Langeliers ATH 36 61 59.0% 6 Victor Caratini MIN 35 52 67.3% 6 Hunter Goodman COL 35 55 63.6% 8 Dillon Dingler DET 34 49 69.4% 8 Logan O’Hoppe LAA 34 57 59.6% 10 Edgar Quero CWS 33 68 48.5% 11 Patrick Bailey CLE 32 56 57.1% 12 Will Smith LAD 31 47 66.0% 13 Austin Wells NYY 30 48 62.5% 14 Carson Kelly CHC 28 34 82.4% 15 Liam Hicks MIA 27 48 56.3% 16 Pedro Pages STL 25 36 69.4% 17 J.T. Realmuto PHI 24 30 80.0% 17 Joe Mack MIA 24 42 57.1% 19 Miguel Amaya CHC 23 35 65.7% 19 Freddy Fermin SD 23 41 56.1%
MLB Team ABS Challenge Rankings
Team BatChallSuccess% Pitch/CatchChallSuccess% TotChallSuccess% Arizona Diamondbacks 56.7% (1) 67.2% (4) 62.1% (2) Athletics 54.2% (4) 58.5% (19) 56.7% (10) Atlanta Braves 40.3% (27) 61.4% (11) 52.7% (16) Baltimore Orioles 51.3% (9) 44.4% (30) 48.5% (25) Boston Red Sox 43.3% (21) 57.7% (20) 49.6% (24) Chicago Cubs 41.7% (24) 71.1% (1) 56.8% (9) Chicago White Sox 47.5% (15) 47.7% (26) 47.6% (27) Cincinnati Reds 55.3% (3) 70.3% (2) 62.3% (1) Cleveland Guardians 37.0% (29) 51.3% (24) 43.9% (29) Colorado Rockies 38.3% (28) 60.4% (12) 50.3% (22) Detroit Tigers 52.6% (8) 69.4% (3) 60.0% (3) Houston Astros 55.7% (2) 48.8% (25) 52.2% (18) Kansas City Royals 53.7% (5) 59.6% (14) 57.1% (7) Los Angeles Angels 42.3% (23) 60.0% (13) 51.8% (19) Los Angeles Dodgers 52.9% (6) 64.9% (6) 59.2% (4) Miami Marlins 52.7% (7) 59.2% (16) 57.2% (6) Milwaukee Brewers 41.7% (24) 59.3% (15) 54.0% (15) Minnesota Twins 47.4% (16) 62.0% (10) 55.1% (12) New York Mets 47.4% (17) 53.8% (22) 50.6% (20) New York Yankees 50.0% (11) 58.8% (17) 54.5% (13) Philadelphia Phillies 45.9% (18) 63.6% (8) 54.3% (14) Pittsburgh Pirates 36.4% (30) 45.8% (28) 40.4% (30) San Diego Padres 44.0% (20) 62.7% (9) 55.6% (11) San Francisco Giants 48.6% (12) 51.4% (23) 50.0% (23) Seattle Mariners 40.6% (26) 58.8% (18) 50.3% (21) St. Louis Cardinals 48.3% (14) 65.3% (5) 57.6% (5) Tampa Bay Rays 45.3% (19) 57.5% (21) 52.3% (17) Texas Rangers 50.7% (10) 63.9% (7) 57.0% (8) Toronto Blue Jays 48.5% (13) 47.6% (27) 48.1% (26) Washington Nationals 42.6% (22) 45.7% (29) 44.4% (28)
Umpire ABS Challenge Leaders
Rank UmpireName Chal ChalW Chal% P 1 Dillon Wilson 10 3 30.0% 1152 2 Louie Krupa 33 11 33.3% 2028 3 Tyler Jones 31 11 35.5% 2310 4 Derek Thomas 45 16 35.6% 2982 5 Emil Jimenez 41 15 36.6% 3210 6 Dexter Kelley 32 12 37.5% 2146 7 Scott Barry 46 18 39.1% 3717 8 James Hoye 52 21 40.4% 3897 9 James Jean 51 21 41.2% 4159 10 Erich Bacchus 46 19 41.3% 4280 11 Alex Tosi 48 20 41.7% 4169 11 Edwin Jimenez 24 10 41.7% 2181 13 David Rackley 55 23 41.8% 4382 14 Mark Ripperger 52 22 42.3% 3943 15 John Libka 35 15 42.9% 3475 16 Jonathan Parra 32 14 43.8% 2487 17 Nic Lentz 61 27 44.3% 4230 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 22 Austin Jones 41 19 46.3% 2754 23 Vic Carapazza 56 26 46.4% 4463 23 Steven Jaschinski 28 13 46.4% 1731 25 Quinn Wolcott 58 27 46.6% 4141 26 Adam Beck 62 29 46.8% 4185 27 Shane Livensparger 44 21 47.7% 3140 28 Jordan Baker 46 22 47.8% 3682 29 Nate Tomlinson 48 23 47.9% 4154 30 Will Little 62 30 48.4% 4193 31 Carlos Torres 51 25 49.0% 4069 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 38 Junior Valentine 49 25 51.0% 3501 38 Ryan Wills 49 25 51.0% 3465 41 Nick Mahrley 35 18 51.4% 2999 42 Jeremie Rehak 56 29 51.8% 3599 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 Bill Miller 57 31 54.4% 4203 50 Alan Porter 55 30 54.5% 3598 51 Lance Barksdale 53 29 54.7% 3778 51 Roberto Ortiz 53 29 54.7% 3606 53 Chris Guccione 76 42 55.3% 4565 54 Gabe Morales 47 26 55.3% 3317 54 Paul Clemons 47 26 55.3% 4005 56 Chad Fairchild 61 34 55.7% 4104 57 Malachi Moore 68 38 55.9% 4542 58 Laz Diaz 73 41 56.2% 4476 59 Cory Blaser 48 27 56.3% 3360 59 Charlie Ramos 48 27 56.3% 2597 61 Sean Barber 62 35 56.5% 3790 62 Ben May 46 26 56.5% 3965 63 Jen Pawol 42 24 57.1% 2379 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 49 34 69.4% 3622 90 Andy Fletcher 40 29 72.5% 2790 91 CB Bucknor 9 7 77.8% 674
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