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, pitchers, catchers, teams and umpires for the 2026 MLB season.
Data updated through Friday, April 3.
Batter ABS Challenge Leaders Pitcher ABS Challenge Leaders Catcher ABS Challenge Leaders MLB Team ABS Challenge Rankings Umpire ABS Challenge Leaders Rank Name Pitches Calls Overturn Pitches 1 Erich Bacchus 3 0 0.0% 332 1 Quinn Wolcott 2 0 0.0% 609 1 Vic Carapazza 1 0 0.0% 269 1 James Hoye 1 0 0.0% 291 5 David Rackley 7 1 14.3% 603 6 Will Little 6 1 16.7% 583 7 Emil Jimenez 5 1 20.0% 299 8 John Tumpane 4 1 25.0% 321 8 Roberto Ortiz 4 1 25.0% 281 8 Ben May 4 1 25.0% 348 11 Ryan Additon 7 2 28.6% 649 12 Lance Barksdale 6 2 33.3% 569 12 Nic Lentz 6 2 33.3% 319 12 Jordan Baker 6 2 33.3% 554 12 Stu Scheurwater 6 2 33.3% 581 12 Chris Conroy 3 1 33.3% 323 12 Mike Muchlinski 3 1 33.3% 517 12 Nick Mahrley 3 1 33.3% 340 12 Dan Merzel 3 1 33.3% 277 12 Nate Tomlinson 3 1 33.3% 277 21 Ramon De Jesus 11 4 36.4% 634 22 Ryan Blakney 8 3 37.5% 590 23 D.J. Reyburn 5 2 40.0% 341 23 Nestor Ceja 5 2 40.0% 597 23 Tom Hanahan 5 2 40.0% 290 26 Gabe Morales 7 3 42.9% 569 26 Jansen Visconti 7 3 42.9% 553 26 Jeremie Rehak 7 3 42.9% 570 26 Bruce Dreckman 7 3 42.9% 637 30 Laz Diaz 12 6 50.0% 548 30 Tripp Gibson 8 4 50.0% 682 30 Carlos Torres 8 4 50.0% 612 30 Rob Drake 8 4 50.0% 577 30 Malachi Moore 8 4 50.0% 615 30 Chris Guccione 6 3 50.0% 615 30 Marvin Hudson 4 2 50.0% 528 30 Alex Tosi 4 2 50.0% 240 30 Brennan Miller 4 2 50.0% 353 30 Adam Beck 4 2 50.0% 301 30 Edwin Moscoso 4 2 50.0% 326 30 Scott Barry 2 1 50.0% 293 30 Mark Ripperger 2 1 50.0% 288 30 Ryan Wills 2 1 50.0% 307 44 Doug Eddings 9 5 55.6% 561 44 Brian O'Nora 9 5 55.6% 634 46 Bill Miller 10 6 60.0% 532 46 Hunter Wendelstedt 5 3 60.0% 258 48 Adrian Johnson 8 5 62.5% 638 49 Mark Wegner 6 4 66.7% 614 49 Alan Porter 3 2 66.7% 320 49 Alfonso Márquez 6 4 66.7% 545 49 Todd Tichenor 3 2 66.7% 342 49 Shane Livensparger 3 2 66.7% 274 49 Lance Barrett 12 8 66.7% 570 49 Charlie Ramos 6 4 66.7% 643 56 Dan Iassogna 11 8 72.7% 535 57 Chad Fairchild 4 3 75.0% 275 57 Cory Blaser 8 6 75.0% 615 57 Sean Barber 4 3 75.0% 322 57 Paul Clemons 4 3 75.0% 291 61 Chris Segal 13 10 76.9% 566 62 CB Bucknor 9 7 77.8% 674 63 Manny Gonzalez 5 4 80.0% 296 63 Ron Kulpa 5 4 80.0% 304 65 Dan Bellino 6 5 83.3% 263 65 Andy Fletcher 12 10 83.3% 661 67 Mike Estabrook 12 11 91.7% 525 68 Jim Wolf 3 3 100.0% 274 68 Adam Hamari 1 1 100.0% 240 68 Chad Whitson 7 7 100.0% 295 68 Junior Valentine 2 2 100.0% 269 68 Clint Vondrak 1 1 100.0% 279
