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 Friday, June 12.
Batter ABS Challenge Leaders
Rank PlayerName Team BatChallSuccess BatChallenges BatChallSuccess% 1 Sal Stewart CIN 20 30 66.7% 2 Maikel Garcia KC 10 15 66.7% 2 Kevin McGonigle DET 10 15 66.7% 2 Jose Caballero NYY 10 17 58.8% 5 Xander Bogaerts SD 9 12 75.0% 5 Davis Schneider TOR 9 12 75.0% 5 Jose Altuve HOU 9 13 69.2% 5 Kyle Schwarber PHI 9 14 64.3% 9 Bryan Reynolds PIT 8 14 57.1% 9 Mark Vientos NYM 8 14 57.1% 9 Ivan Herrera STL 8 14 57.1% 9 Munetaka Murakami CWS 8 15 53.3% 9 Gary Sanchez MIL 8 19 42.1% 14 CJ Abrams WSH 7 7 100.0% 14 Nick Kurtz ATH 7 9 77.8% 14 Teoscar Hernandez LAD 7 10 70.0% 14 Josh Bell MIN 7 10 70.0% 14 Brent Rooker ATH 7 10 70.0% 14 Brayan Rocchio CLE 7 11 63.6% 14 Samuel Basallo BAL 7 11 63.6% 14 Austin Martin MIN 7 14 50.0% 14 Zach Neto LAA 7 14 50.0% 14 Bryce Harper PHI 7 15 46.7% 14 Luke Keaschall MIN 7 15 46.7% 14 Ronald Acuna Jr. ATL 7 16 43.8% 14 Cam Smith HOU 7 17 41.2%
Catcher ABS Challenge Leaders
Rank PlayerName Team CatChallSuccess CatChallenges CatChallSuccess% 1 William Contreras MIL 52 86 60.5% 2 Tyler Stephenson CIN 39 54 72.2% 3 Salvador Perez KC 35 48 72.9% 3 Nick Fortes TB 35 59 59.3% 5 Dillon Dingler DET 33 48 68.8% 5 Hunter Goodman COL 33 52 63.5% 5 Edgar Quero CWS 33 67 49.3% 8 Victor Caratini MIN 32 48 66.7% 8 Logan O’Hoppe LAA 32 54 59.3% 8 Patrick Bailey CLE 32 56 57.1% 11 Will Smith LAD 31 47 66.0% 11 Shea Langeliers ATH 31 55 56.4% 13 Austin Wells NYY 30 48 62.5% 14 Carson Kelly CHC 28 34 82.4% 15 Liam Hicks MIA 27 46 58.7% 16 Pedro Pages STL 25 35 71.4% 17 J.T. Realmuto PHI 23 29 79.3% 17 Miguel Amaya CHC 23 35 65.7% 17 Joe Mack MIA 23 41 56.1% 20 Agustín Ramírez MIA 22 31 71.0% 20 Ryan Jeffers MIN 22 36 61.1% 20 Luis Torrens NYM 22 39 56.4% 20 Freddy Fermin SD 22 40 55.0%
MLB Team ABS Challenge Rankings
Team BatChallSuccess% Pitch/CatchChallSuccess% TotChallSuccess% Arizona Diamondbacks 56.1% (2) 67.2% (4) 61.9% (2) Athletics 54.4% (5) 57.3% (20) 56.1% (10) Atlanta Braves 39.3% (28) 61.6% (10) 52.4% (18) Baltimore Orioles 52.1% (9) 44.0% (30) 48.8% (26) Boston Red Sox 43.5% (22) 58.3% (19) 50.0% (23) Chicago Cubs 44.8% (21) 72.0% (1) 59.2% (3) Chicago White Sox 46.6% (17) 48.6% (27) 47.9% (27) Cincinnati Reds 54.9% (3) 70.6% (2) 62.0% (1) Cleveland Guardians 37.5% (29) 52.0% (24) 44.5% (29) Colorado Rockies 39.7% (27) 60.9% (12) 51.2% (21) Detroit Tigers 50.0% (10) 70.0% (3) 59.0% (4) Houston Astros 58.3% (1) 48.8% (26) 53.3% (16) Kansas City Royals 54.8% (4) 60.4% (14) 58.2% (6) Los Angeles Angels 43.2% (24) 59.3% (16) 51.9% (19) Los Angeles Dodgers 52.3% (8) 62.9% (7) 57.8% (8) Miami Marlins 54.0% (6) 59.8% (15) 58.1% (7) Milwaukee Brewers 41.7% (26) 60.7% (13) 54.8% (12) Minnesota Twins 46.7% (16) 61.2% (11) 54.2% (14) New York Mets 49.3% (12) 55.8% (22) 52.7% (17) New York Yankees 50.0% (10) 59.3% (17) 54.7% (13) Philadelphia Phillies 46.4% (18) 62.5% (8) 54.1% (15) Pittsburgh Pirates 37.0% (30) 45.6% (29) 40.8% (30) San Diego Padres 45.8% (20) 61.7% (9) 55.8% (11) San Francisco Giants 47.9% (14) 52.1% (23) 50.0% (23) Seattle Mariners 41.8% (25) 58.4% (18) 50.7% (22) St. Louis Cardinals 47.4% (15) 65.2% (5) 57.1% (9) Tampa Bay Rays 45.9% (19) 56.0% (21) 51.7% (20) Texas Rangers 52.5% (7) 64.9% (6) 58.5% (5) Toronto Blue Jays 48.4% (13) 50.8% (25) 49.6% (25) Washington Nationals 43.3% (23) 48.0% (28) 45.9% (28)
Umpire ABS Challenge Leaders
Rank UmpireName Chal ChalW Chal% P 1 Dillon Wilson 6 1 16.7% 864 2 Louie Krupa 33 11 33.3% 2028 2 Dexter Kelley 27 9 33.3% 1832 4 Erich Bacchus 41 15 36.6% 4011 4 Emil Jimenez 41 15 36.6% 3210 6 Tyler Jones 27 10 37.0% 1973 7 Derek Thomas 40 15 37.5% 2762 8 Scott Barry 46 18 39.1% 3717 9 David Rackley 53 21 39.6% 4099 10 Edwin Jimenez 24 10 41.7% 2181 11 Nic Lentz 57 24 42.1% 3955 12 Mark Ripperger 52 22 42.3% 3943 13 James Hoye 49 21 42.9% 3562 13 John Libka 35 15 42.9% 3475 15 James Jean 48 21 43.8% 3817 16 Alex Tosi 45 20 44.4% 3937 17 John Tumpane 58 26 44.8% 4299 17 Adam Beck 58 26 44.8% 3883 19 Chris Conroy 48 22 45.8% 3755 20 Austin Jones 41 19 46.3% 2754 21 Jonathan Parra 28 13 46.4% 2205 22 Quinn Wolcott 58 27 46.6% 4141 23 Jansen Visconti 45 21 46.7% 3451 24 Ryan Additon 64 30 46.9% 3953 25 Nate Tomlinson 42 20 47.6% 3840 26 Shane Livensparger 44 21 47.7% 3140 27 Jordan Baker 46 22 47.8% 3682 27 Steven Jaschinski 23 11 47.8% 1398 30 Vic Carapazza 54 26 48.1% 4234 29 Edwin Moscoso 52 25 48.1% 3578 31 Will Little 62 30 48.4% 4193 32 Dan Merzel 45 22 48.9% 3233 33 Tom Hanahan 56 28 50.0% 3942 33 Nestor Ceja 52 26 50.0% 3890 33 Lance Barksdale 48 24 50.0% 3514 36 Ryan Blakney 49 25 51.0% 3723 36 Junior Valentine 49 25 51.0% 3501 36 Ryan Wills 49 25 51.0% 3465 39 Adam Hamari 45 23 51.1% 3785 40 Nick Mahrley 35 18 51.4% 2999 41 Jeremie Rehak 56 29 51.8% 3599 42 Mark Wegner 54 28 51.9% 4162 43 Mike Muchlinski 48 25 52.1% 3804 43 Carlos Torres 48 25 52.1% 3747 45 Brennan Miller 53 28 52.8% 3933 46 D.J. Reyburn 51 27 52.9% 3419 47 Tripp Gibson 49 26 53.1% 3971 48 Bruce Dreckman 64 34 53.1% 4377 49 Chris Guccione 71 38 53.5% 4250 50 Brian O’Nora 41 22 53.7% 2830 51 Alan Porter 48 26 54.2% 3340 52 Jen Pawol 33 18 54.5% 2098 53 Bill Miller 51 28 54.9% 3894 54 Gabe Morales 47 26 55.3% 3317 55 Laz Diaz 73 41 56.2% 4255 56 Cory Blaser 48 27 56.3% 3360 57 Ben May 46 26 56.5% 3965 58 Dan Bellino 60 34 56.7% 3773 58 Malachi Moore 60 34 56.7% 4183 60 Roberto Ortiz 51 29 56.9% 3303 61 Chad Fairchild 58 33 56.9% 3798 62 Charlie Ramos 42 24 57.1% 2286 63 Alex MacKay 54 31 57.4% 3740 64 Marvin Hudson 40 23 57.5% 3347 65 Sean Barber 57 33 57.9% 3520 66 Paul Clemons 43 25 58.1% 3683 67 Mike Estabrook 55 32 58.2% 3839 68 Brock Ballou 41 24 58.5% 2878 69 Adrian Johnson 37 22 59.5% 2285 70 Doug Eddings 50 30 60.0% 3655 71 Jim Wolf 48 29 60.4% 3210 71 Chad Whitson 48 29 60.4% 3422 73 Lance Barrett 67 41 61.2% 4042 74 Rob Drake 57 35 61.4% 3969 75 Hunter Wendelstedt 66 41 62.1% 3598 76 Alfonso Márquez 45 28 62.2% 3599 77 Manny Gonzalez 69 43 62.3% 4124 78 John Bacon 49 31 63.3% 2526 78 Willie Traynor 49 31 63.3% 4132 80 Dan Iassogna 69 44 63.8% 4182 81 Ron Kulpa 36 23 63.9% 2033 82 Ramon De Jesus 53 34 64.2% 2951 83 Chris Segal 62 40 64.5% 3846 84 Brian Walsh 54 35 64.8% 3388 85 Jacob Metz 41 27 65.9% 2074 86 Stu Scheurwater 59 39 66.1% 3564 87 Clint Vondrak 40 27 67.5% 3196 88 Felix Neon 22 15 68.2% 892 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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