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 Tuesday, March 31.
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
Bruce Dreckman
4
0
0.0%
335
1
David Rackley
3
0
0.0%
307
1
Erich Bacchus
3
0
0.0%
332
1
Vic Carapazza
1
0
0.0%
269
1
James Hoye
1
0
0.0%
291
1
Quinn Wolcott
1
0
0.0%
335
7
Will Little
6
1
16.7%
583
8
Emil Jimenez
5
1
20.0%
299
9
John Tumpane
4
1
25.0%
321
9
Roberto Ortiz
4
1
25.0%
281
9
Ben May
4
1
25.0%
348
12
Lance Barksdale
6
2
33.3%
569
12
Ryan Additon
6
2
33.3%
371
12
Jordan Baker
6
2
33.3%
554
12
Chris Conroy
3
1
33.3%
323
12
Mike Muchlinski
3
1
33.3%
270
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
Rob Drake
3
1
33.3%
272
12
Nestor Ceja
3
1
33.3%
310
12
Nate Tomlinson
3
1
33.3%
277
24
D.J. Reyburn
5
2
40.0%
341
24
Malachi Moore
5
2
40.0%
287
26
Laz Diaz
12
6
50.0%
548
26
Chris Guccione
6
3
50.0%
615
26
Marvin Hudson
4
2
50.0%
528
26
Ramon De Jesus
4
2
50.0%
339
26
Alex Tosi
4
2
50.0%
240
26
Brennan Miller
4
2
50.0%
353
26
Adam Beck
4
2
50.0%
301
26
Scott Barry
2
1
50.0%
293
26
Mark Ripperger
2
1
50.0%
288
26
Ryan Wills
2
1
50.0%
307
36
Doug Eddings
9
5
55.6%
561
37
Carlos Torres
7
4
57.1%
348
38
Bill Miller
10
6
60.0%
532
38
Hunter Wendelstedt
5
3
60.0%
258
40
Adrian Johnson
8
5
62.5%
638
41
Mark Wegner
6
4
66.7%
614
41
Alfonso Márquez
6
4
66.7%
545
41
Tripp Gibson
6
4
66.7%
358
41
Alan Porter
3
2
66.7%
320
41
Todd Tichenor
3
2
66.7%
342
41
Brian O’Nora
3
2
66.7%
318
41
Jeremie Rehak
3
2
66.7%
273
41
Ryan Blakney
3
2
66.7%
249
49
Chris Segal
10
7
70.0%
321
50
Dan Iassogna
11
8
72.7%
535
51
Chad Fairchild
4
3
75.0%
275
51
Cory Blaser
4
3
75.0%
310
51
CB Bucknor
8
6
75.0%
383
51
Sean Barber
4
3
75.0%
322
51
Lance Barrett
4
3
75.0%
288
51
Paul Clemons
4
3
75.0%
291
57
Ron Kulpa
5
4
80.0%
304
58
Dan Bellino
6
5
83.3%
263
59
Jim Wolf
3
3
100.0%
274
59
Andy Fletcher
1
1
100.0%
280
59
Chad Whitson
7
7
100.0%
295
59
Mike Estabrook
5
5
100.0%
291
59
Junior Valentine
2
2
100.0%
269
59
Charlie Ramos
1
1
100.0%
271
