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, June 14.
Batter ABS Challenge Leaders
Rank PlayerName Team BatChallSuccess BatChallenges BatChallSuccess% 1 Sal Stewart CIN 20 30 66.7% 2 Kevin McGonigle DET 11 16 68.8% 3 Jose Altuve HOU 10 14 71.4% 3 Maikel Garcia KC 10 16 62.5% 3 Jose Caballero NYY 10 17 58.8% 6 Xander Bogaerts SD 9 12 75.0% 6 Davis Schneider TOR 9 12 75.0% 6 Kyle Schwarber PHI 9 14 64.3% 9 Josh Bell MIN 8 11 72.7% 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 Austin Martin MIN 8 16 50.0% 9 Gary Sanchez MIL 8 19 42.1% 16 CJ Abrams WSH 7 7 100.0% 16 Nick Kurtz ATH 7 9 77.8% 16 Teoscar Hernandez LAD 7 10 70.0% 16 Christian Walker HOU 7 10 70.0% 16 Brent Rooker ATH 7 10 70.0% 16 Brayan Rocchio CLE 7 11 63.6% 16 Samuel Basallo BAL 7 11 63.6% 16 Zach Neto LAA 7 14 50.0% 16 Luke Keaschall MIN 7 15 46.7% 16 Ronald Acuna Jr. ATL 7 16 43.8% 16 Bryce Harper PHI 7 16 43.8% 16 Cam Smith HOU 7 17 41.2%
Catcher ABS Challenge Leaders
Rank PlayerName Team CatChallSuccess CatChallenges CatChallSuccess% 1 William Contreras MIL 52 88 59.1% 2 Tyler Stephenson CIN 42 57 73.7% 3 Salvador Perez KC 36 49 73.5% 4 Victor Caratini MIN 35 52 67.3% 4 Hunter Goodman COL 35 55 63.6% 4 Nick Fortes TB 35 59 59.3% 7 Dillon Dingler DET 33 48 68.8% 7 Logan O’Hoppe LAA 33 55 60.0% 7 Edgar Quero CWS 33 68 48.5% 10 Patrick Bailey CLE 32 56 57.1% 10 Shea Langeliers ATH 32 57 56.1% 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 47 57.4% 16 Pedro Pages STL 25 36 69.4% 17 Joe Mack MIA 24 42 57.1% 18 J.T. Realmuto PHI 23 29 79.3% 18 Miguel Amaya CHC 23 35 65.7% 18 Freddy Fermin SD 23 41 56.1%
MLB Team ABS Challenge Rankings
Team BatChallSuccess% Pitch/CatchChallSuccess% TotChallSuccess% Arizona Diamondbacks 56.7% (2) 66.1% (4) 61.5% (2) Athletics 54.4% (5) 56.9% (20) 55.9% (10) Atlanta Braves 40.3% (27) 61.4% (11) 52.7% (17) Baltimore Orioles 52.0% (9) 44.4% (30) 48.8% (24) Boston Red Sox 42.2% (24) 56.9% (20) 48.7% (25) Chicago Cubs 42.9% (21) 72.0% (2) 57.9% (6) Chicago White Sox 47.5% (15) 48.1% (27) 47.9% (27) Cincinnati Reds 56.0% (3) 72.2% (1) 63.5% (1) Cleveland Guardians 37.0% (29) 51.3% (24) 43.9% (29) Colorado Rockies 38.8% (28) 61.1% (12) 50.9% (21) Detroit Tigers 51.3% (10) 70.0% (3) 59.6% (3) Houston Astros 58.7% (1) 48.8% (25) 53.5% (16) Kansas City Royals 54.0% (6) 60.2% (15) 57.7% (7) Los Angeles Angels 42.9% (21) 60.2% (14) 52.1% (19) Los Angeles Dodgers 52.2% (8) 62.9% (8) 57.7% (8) Miami Marlins 54.7% (4) 59.7% (16) 58.2% (5) Milwaukee Brewers 41.7% (25) 60.4% (13) 54.7% (13) Minnesota Twins 47.9% (14) 62.1% (10) 55.3% (12) New York Mets 47.3% (17) 55.8% (22) 51.7% (20) New York Yankees 49.4% (11) 58.3% (17) 53.9% (15) Philadelphia Phillies 45.8% (19) 63.1% (7) 54.0% (14) Pittsburgh Pirates 36.8% (30) 45.6% (29) 40.6% (30) San Diego Padres 44.9% (20) 62.2% (9) 55.7% (11) San Francisco Giants 48.6% (12) 51.4% (23) 50.0% (23) Seattle Mariners 41.2% (26) 58.2% (18) 50.3% (22) St. Louis Cardinals 47.5% (16) 64.8% (6) 56.9% (9) Tampa Bay Rays 45.9% (18) 57.0% (19) 52.4% (18) Texas Rangers 52.3% (7) 65.5% (5) 58.5% (4) Toronto Blue Jays 48.5% (13) 48.4% (26) 48.4% (26) Washington Nationals 42.6% (23) 46.8% (28) 45.0% (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 Emil Jimenez 41 15 36.6% 3210 5 Derek Thomas 40 15 37.5% 2762 5 Dexter Kelley 32 12 37.5% 2146 7 Scott Barry 46 18 39.1% 3717 8 James Jean 51 21 41.2% 4159 9 Erich Bacchus 46 19 41.3% 4280 10 Alex Tosi 48 20 41.7% 4169 10 Edwin Jimenez 24 10 41.7% 2181 12 David Rackley 55 23 41.8% 4382 13 Nic Lentz 57 24 42.1% 3955 14 Mark Ripperger 52 22 42.3% 3943 15 James Hoye 49 21 42.9% 3562 15 John Libka 35 15 42.9% 3475 17 Jonathan Parra 32 14 43.8% 2487 18 John Tumpane 58 26 44.8% 4299 19 Chris Conroy 48 22 45.8% 3755 20 Jansen Visconti 50 23 46.0% 3727 21 Austin Jones 41 19 46.3% 2754 22 Steven Jaschinski 28 13 46.4% 1731 23 Quinn Wolcott 58 27 46.6% 4141 24 Adam Beck 62 29 46.8% 4185 25 Ryan Additon 64 30 46.9% 3953 26 Shane Livensparger 44 21 47.7% 3140 27 Jordan Baker 46 22 47.8% 3682 28 Nate Tomlinson 48 23 47.9% 4154 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 60 30 50.0% 4247 34 Nestor Ceja 57 29 50.9% 4196 35 Ryan Blakney 49 25 51.0% 3723 35 Junior Valentine 49 25 51.0% 3501 35 Ryan Wills 49 25 51.0% 3465 38 Adam Hamari 45 23 51.1% 3785 39 Nick Mahrley 35 18 51.4% 2999 40 Jeremie Rehak 56 29 51.8% 3599 41 Mark Wegner 54 28 51.9% 4162 42 Mike Muchlinski 48 25 52.1% 3804 42 Carlos Torres 48 25 52.1% 3747 44 D.J. Reyburn 51 27 52.9% 3419 46 Bruce Dreckman 64 34 53.1% 4377 45 Tripp Gibson 49 26 53.1% 3971 47 Chris Guccione 71 38 53.5% 4250 48 Brennan Miller 56 30 53.6% 4228 49 Brian O’Nora 41 22 53.7% 2830 50 Bill Miller 57 31 54.4% 4203 51 Alan Porter 55 30 54.5% 3598 52 Lance Barksdale 53 29 54.7% 3778 52 Roberto Ortiz 53 29 54.7% 3606 54 Gabe Morales 47 26 55.3% 3317 55 Malachi Moore 68 38 55.9% 4542 56 Laz Diaz 73 41 56.2% 4255 57 Cory Blaser 48 27 56.3% 3360 58 Ben May 46 26 56.5% 3965 59 Dan Bellino 60 34 56.7% 3773 60 Chad Fairchild 58 33 56.9% 3798 61 Charlie Ramos 42 24 57.1% 2286 61 Jen Pawol 42 24 57.1% 2379 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 Lance Barrett 71 42 59.2% 4333 70 Doug Eddings 54 32 59.3% 3920 71 Adrian Johnson 37 22 59.5% 2285 72 Ramon De Jesus 57 34 59.6% 3229 73 Jim Wolf 48 29 60.4% 3210 73 Chad Whitson 48 29 60.4% 3422 75 Rob Drake 61 37 60.7% 4250 76 Hunter Wendelstedt 66 41 62.1% 3598 77 Alfonso Márquez 45 28 62.2% 3599 78 Manny Gonzalez 69 43 62.3% 4124 79 Felix Neon 27 17 63.0% 1186 80 John Bacon 49 31 63.3% 2526 80 Willie Traynor 49 31 63.3% 4132 82 Dan Iassogna 69 44 63.8% 4182 83 Ron Kulpa 36 23 63.9% 2033 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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