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
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
Nestor Ceja
3
1
33.3%
310
12
Nate Tomlinson
3
1
33.3%
277
23
D.J. Reyburn
5
2
40.0%
341
23
Malachi Moore
5
2
40.0%
287
25
Bruce Dreckman
7
3
42.9%
637
26
Laz Diaz
12
6
50.0%
548
26
Tripp Gibson
8
4
50.0%
682
26
Rob Drake
8
4
50.0%
577
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
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
4
3
75.0%
310
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
