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 Thursday, April 2.
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 Chris Conroy 3 1 33.3% 323 12 Mike Muchlinski 3 1 33.3% 517 12 Gabe Morales 3 1 33.3% 248 12 Nick Mahrley 3 1 33.3% 340 12 Jansen Visconti 3 1 33.3% 265 12 Stu Scheurwater 3 1 33.3% 268 12 Nate Tomlinson 3 1 33.3% 277 22 D.J. Reyburn 5 2 40.0% 341 22 Nestor Ceja 5 2 40.0% 597 24 Bruce Dreckman 7 3 42.9% 637 25 Laz Diaz 12 6 50.0% 548 25 Tripp Gibson 8 4 50.0% 682 25 Rob Drake 8 4 50.0% 577 25 Malachi Moore 8 4 50.0% 615 25 Chris Guccione 6 3 50.0% 615 25 Marvin Hudson 4 2 50.0% 528 25 Ramon De Jesus 4 2 50.0% 339 25 Alex Tosi 4 2 50.0% 240 25 Brennan Miller 4 2 50.0% 353 25 Adam Beck 4 2 50.0% 301 25 Scott Barry 2 1 50.0% 293 25 Mark Ripperger 2 1 50.0% 288 25 Ryan Wills 2 1 50.0% 307 38 Doug Eddings 9 5 55.6% 561 38 Brian O'Nora 9 5 55.6% 634 40 Carlos Torres 7 4 57.1% 348 41 Bill Miller 10 6 60.0% 532 41 Hunter Wendelstedt 5 3 60.0% 258 43 Adrian Johnson 8 5 62.5% 638 44 Mark Wegner 6 4 66.7% 614 44 Alfonso Márquez 6 4 66.7% 545 44 Alan Porter 3 2 66.7% 320 44 Todd Tichenor 3 2 66.7% 342 44 Jeremie Rehak 3 2 66.7% 273 44 Ryan Blakney 3 2 66.7% 249 44 Shane Livensparger 3 2 66.7% 274 44 Lance Barrett 12 8 66.7% 570 52 Chris Segal 10 7 70.0% 321 53 Dan Iassogna 11 8 72.7% 535 54 Chad Fairchild 4 3 75.0% 275 54 Cory Blaser 8 6 75.0% 615 54 Sean Barber 4 3 75.0% 322 54 Paul Clemons 4 3 75.0% 291 58 CB Bucknor 9 7 77.8% 674 59 Manny Gonzalez 5 4 80.0% 296 59 Ron Kulpa 5 4 80.0% 304 61 Dan Bellino 6 5 83.3% 263 61 Andy Fletcher 12 10 83.3% 661 63 Jim Wolf 3 3 100.0% 274 63 Adam Hamari 1 1 100.0% 240 63 Chad Whitson 7 7 100.0% 295 63 Mike Estabrook 5 5 100.0% 291 63 Junior Valentine 2 2 100.0% 269 63 Charlie Ramos 1 1 100.0% 271
