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Umpires
Umpire stats related to ABS challenges
2026
▼
Regular Season
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Accuracy
Challenges
Impact
Call Context
#
Umpire
Called
Total Called Pitches
Correct
Correct Calls
Missed
Incorrect Calls
Acc%
▼
Overall Accuracy (Correct / Total)
Avg Miss (in.)
Avg Distance to Zone Edge on Incorrect Calls (inches)
Bad S
Incorrect Called Strikes (ball called strike)
Bad B
Incorrect Balls (strike called ball)
xAcc%
Accuracy an average umpire would achieve on this umpire's pitch mix.
AOE
Actual accuracy minus xAcc%. Difficulty adjusted umpire skill.
Chall
ABS Challenges Faced
OT
Challenges Overturned
OT%
Overturn Rate
xChall
Expected Challenges Faced (sum of xChall% across all called pitches)
COE
Challenges Over Expected (actual challenges − expected challenges)
COE/P
Challenges Over Expected per Called Pitch
OT RE
Total RE Given Up on Overturned Challenges
OT WPA
Total WPA Given Up on Overturned Challenges
Upheld Cost RE
Total RE Cost to Teams on Upheld Challenges
Upheld Cost WPA
Total WPA Cost to Teams on Upheld Challenges
Call LI
Avg Call Leverage Index on Challenged Pitches
xChall%
Avg Expected Challenge % on Challenged Pitches
cBE%
Avg Challenge Breakeven %
acBE%
Avg Adjusted Challenge Breakeven % (timing-adjusted)
1
Dillon Wilson
1186
1133
53
95.5%
0.75
34
19
93.8%
+1.8%
22
7
31.8%
23.85
-1.85
-0.0016
0.922
0.054
0.622
0.052
1.02
16.0%
55.5%
23.3%
2
Mark Ripperger
3603
3426
177
95.1%
0.91
87
90
93.8%
+1.3%
96
40
41.7%
80.09
+15.91
+0.0044
8.944
0.706
1.776
0.149
1.43
20.9%
53.3%
15.9%
3
Edwin Moscoso
3245
3081
164
95.0%
0.90
70
94
94.0%
+1.0%
93
45
48.4%
76.83
+16.17
+0.0050
8.011
0.729
1.114
0.082
1.18
21.8%
53.8%
16.3%
4
Jansen Visconti
2990
2836
154
94.8%
0.89
70
84
93.5%
+1.4%
74
32
43.2%
67.18
+6.82
+0.0023
4.387
0.499
1.121
0.093
1.12
16.9%
60.6%
20.8%
5
Louie Krupa
1703
1611
92
94.6%
0.83
44
48
93.4%
+1.2%
48
20
41.7%
40.53
+7.47
+0.0044
4.015
0.352
0.769
0.051
1.14
20.5%
54.9%
18.5%
6
Nate Tomlinson
3405
3217
188
94.5%
0.81
89
99
93.9%
+0.6%
78
41
52.6%
80.66
-2.66
-0.0008
9.344
0.836
1.094
0.082
1.29
23.0%
53.9%
17.8%
7
Gabe Morales
3290
3108
182
94.5%
1.05
121
61
93.9%
+0.5%
78
39
50.0%
80.27
-2.27
-0.0007
7.186
0.899
0.746
0.063
1.44
22.4%
60.6%
14.2%
8
Austin Jones
2340
2210
130
94.4%
0.80
68
62
93.6%
+0.9%
58
25
43.1%
52.68
+5.32
+0.0023
6.540
0.874
1.171
0.093
2.32
23.6%
48.4%
15.2%
9
Adam Hamari
3746
3537
209
94.4%
0.85
102
107
93.3%
+1.1%
78
37
47.4%
93.44
-15.44
-0.0041
8.508
0.998
1.007
0.080
1.99
23.9%
50.3%
14.6%
10
Tyler Jones
2534
2392
142
94.4%
1.01
65
77
93.6%
+0.8%
72
40
55.6%
61.75
+10.25
+0.0040
6.589
0.606
1.219
0.112
1.46
24.9%
56.3%
19.9%
11
Tripp Gibson
3478
3283
195
94.4%
0.90
103
92
93.4%
+1.0%
82
41
50.0%
88.38
-6.38
-0.0018
5.889
0.570
1.008
0.081
1.24
18.4%
55.8%
18.4%
12
Dexter Kelley
2231
2105
126
94.3%
0.97
74
52
93.4%
+1.0%
67
28
41.8%
55.25
+11.75
+0.0053
5.232
0.543
0.962
0.077
1.34
19.8%
55.0%
18.5%
13
Junior Valentine
3162
2983
179
94.3%
0.91
95
84
94.1%
+0.3%
76
41
53.9%
78.16
-2.16
-0.0007
9.022
0.700
0.561
0.049
1.33
23.0%
51.9%
13.1%
14
Nestor Ceja
3544
3343
201
94.3%
0.84
103
98
93.8%
+0.5%
101
50
49.5%
81.87
+19.13
+0.0054
9.511
1.160
1.303
0.108
1.49
21.5%
55.4%
16.2%
15
Chris Conroy
3381
3189
192
94.3%
0.98
98
94
93.5%
+0.9%
83
40
48.2%
78.70
+4.30
+0.0013
8.540
0.738
1.260
0.103
1.15
20.9%
53.7%
18.4%
16
Derek Thomas
2719
2564
155
94.3%
0.93
74
81
93.2%
+1.1%
71
26
36.6%
63.21
+7.79
+0.0029
4.798
0.413
1.465
0.104
1.16
17.0%
55.1%
18.6%
17
John Libka
2975
2801
174
94.2%
0.84
75
99
93.7%
+0.5%
64
26
40.6%
72.43
-8.43
-0.0028
6.008
0.479
1.162
0.102
1.25
18.7%
56.0%
21.8%
18
Alex Tosi
3209
3020
189
94.1%
0.76
105
84
93.5%
+0.6%
83
38
45.8%
73.80
+9.20
+0.0029
6.919
0.692
1.127
0.098
1.24
19.9%
55.5%
17.8%
19
Steven Jaschinski
1556
1464
92
94.1%
0.70
53
39
93.5%
+0.6%
48
22
45.8%
35.50
+12.50
+0.0080
4.616
0.446
0.782
0.062
1.10
17.3%
56.7%
18.2%
20
Dan Merzel
3393
3192
201
94.1%
0.82
110
91
93.5%
+0.6%
94
48
51.1%
81.92
+12.08
+0.0036
9.535
1.050
1.286
0.120
1.57
23.4%
54.3%
17.1%
21
Jeremie Rehak
3060
2879
181
94.1%
0.96
101
80
93.5%
+0.6%
84
43
51.2%
69.35
+14.65
+0.0048
8.538
0.846
1.391
0.103
1.20
19.6%
57.9%
21.7%
22
Willie Traynor
4047
3804
243
94.0%
0.92
84
159
93.7%
+0.3%
94
53
56.4%
101.20
-7.20
-0.0018
9.690
0.800
1.083
0.078
0.91
21.3%
55.5%
16.0%
23
Erich Bacchus
3459
3251
208
94.0%
1.11
108
100
93.6%
+0.4%
72
33
45.8%
88.88
-16.88
-0.0049
5.586
0.539
1.338
0.130
1.72
21.5%
55.1%
17.9%
24
Mark Wegner
3671
3450
221
94.0%
1.10
116
105
93.8%
+0.2%
96
47
49.0%
90.79
+5.21
+0.0014
8.664
0.863
1.576
0.129
1.33
20.9%
52.8%
19.7%
25
Edwin Jimenez
1312
1233
79
94.0%
0.88
46
33
93.6%
+0.4%
28
11
39.3%
31.53
-3.53
-0.0027
2.246
0.230
0.458
0.038
1.36
21.1%
56.1%
17.3%
26
Vic Carapazza
3681
3459
222
94.0%
0.93
116
106
93.7%
+0.3%
89
44
49.4%
93.46
-4.46
-0.0012
7.783
0.637
1.258
0.096
1.11
19.6%
55.0%
18.1%
27
Alex MacKay
3359
3156
199
94.0%
0.95
98
101
93.6%
+0.4%
99
55
55.6%
88.37
+10.63
+0.0032
12.057
1.255
1.111
0.102
1.71
25.4%
51.7%
15.9%
28
Shane Livensparger
2766
2598
168
93.9%
1.03
86
82
93.6%
+0.4%
78
38
48.7%
69.91
+8.09
+0.0029
6.681
0.749
1.090
0.086
1.48
19.4%
54.6%
17.6%
29
James Hoye
3384
3177
207
93.9%
0.90
101
106
93.4%
+0.5%
101
52
51.5%
81.32
+19.68
+0.0058
9.347
0.983
1.345
0.105
1.30
21.0%
55.6%
18.2%
30
James Jean
2988
2805
183
93.9%
0.81
75
108
93.5%
+0.3%
70
28
40.0%
69.28
+0.72
+0.0002
3.843
0.342
1.573
0.130
0.95
19.3%
59.5%
23.4%
31
Quinn Wolcott
3689
3461
228
93.8%
0.94
117
111
93.7%
+0.1%
99
50
50.5%
94.29
+4.71
+0.0013
8.498
0.710
1.294
0.109
1.38
22.0%
55.3%
18.7%
32
Ramon De Jesus
2854
2676
178
93.8%
1.07
105
73
93.8%
-0.1%
92
50
54.3%
74.30
+17.70
+0.0062
7.763
0.672
1.216
0.104
0.90
20.4%
58.5%
19.3%
33
Jonathan Parra
1841
1726
115
93.8%
0.89
53
62
94.0%
-0.3%
47
21
44.7%
43.36
+3.64
+0.0020
4.270
0.445
1.041
0.081
1.46
20.4%
54.2%
19.3%
34
John Tumpane
3333
3124
194
93.7%
1.00
108
86
93.6%
+0.1%
97
55
56.7%
87.19
+9.81
+0.0029
8.365
1.001
1.067
0.091
1.29
21.4%
58.5%
20.3%
35
Brock Ballou
2392
2242
150
93.7%
0.81
72
78
93.6%
+0.2%
79
44
55.7%
58.91
+20.09
+0.0084
5.864
0.646
1.060
0.102
1.63
18.8%
55.3%
18.6%
36
David Rackley
3202
3001
201
93.7%
1.11
127
74
93.8%
-0.1%
78
34
43.6%
76.08
+1.92
+0.0006
4.131
0.321
1.208
0.091
0.89
17.5%
58.0%
18.4%
37
Brian Walsh
3016
2826
190
93.7%
1.04
106
84
93.3%
+0.4%
95
57
60.0%
75.87
+19.13
+0.0063
6.670
0.707
1.086
0.093
1.10
21.0%
59.8%
19.1%
38
Will Little
3657
3425
221
93.7%
0.85
113
108
93.4%
+0.2%
103
49
47.6%
85.95
+17.05
+0.0047
8.743
1.049
2.015
0.181
1.38
22.0%
55.0%
18.3%
39
Adam Beck
3589
3361
228
93.7%
0.94
111
117
93.5%
+0.1%
101
50
49.5%
93.45
+7.55
+0.0021
9.667
0.812
1.613
0.140
1.07
20.7%
53.0%
18.5%
40
Tom Hanahan
3412
3195
217
93.6%
0.90
114
103
93.4%
+0.2%
92
49
53.3%
79.77
+12.23
+0.0036
7.921
0.666
1.525
0.135
1.02
19.2%
55.9%
18.4%
41
Ben May
3146
2945
201
93.6%
0.93
122
79
93.5%
+0.1%
71
40
56.3%
76.71
-5.71
-0.0018
7.875
0.999
0.872
0.075
1.25
22.5%
55.3%
18.5%
42
Alan Porter
3128
2928
200
93.6%
0.98
99
101
93.5%
+0.1%
90
45
50.0%
79.09
+10.91
+0.0035
9.440
0.997
1.435
0.126
1.34
20.7%
56.9%
23.3%
43
Jim Wolf
3015
2822
193
93.6%
1.03
105
88
93.7%
-0.1%
94
50
53.2%
75.81
+18.19
+0.0060
11.245
0.914
1.248
0.070
1.13
23.3%
54.1%
17.9%
44
Scott Barry
2857
2673
184
93.6%
1.00
99
85
93.7%
-0.1%
71
32
45.1%
67.73
+3.27
+0.0011
5.165
0.517
1.283
0.113
1.11
18.8%
58.9%
22.4%
45
Lance Barrett
3671
3434
237
93.5%
1.05
127
110
93.6%
-0.1%
118
65
55.1%
96.08
+21.92
+0.0060
10.743
1.224
1.261
0.110
1.47
24.0%
54.4%
17.1%
46
Mike Muchlinski
3717
3476
241
93.5%
1.11
158
83
93.7%
-0.2%
85
45
52.9%
87.82
-2.82
-0.0008
8.278
0.574
1.147
0.087
0.92
19.9%
58.2%
20.4%
47
Ryan Wills
3344
3126
218
93.5%
0.92
109
109
93.5%
+0.0%
100
51
51.0%
82.30
+17.70
+0.0053
9.232
0.913
1.596
0.136
1.21
21.2%
57.4%
19.5%
48
Ryan Additon
3584
3350
234
93.5%
0.81
108
126
93.2%
+0.3%
106
48
45.3%
91.81
+14.19
+0.0040
10.264
1.132
1.712
0.151
1.70
22.8%
52.3%
15.5%
49
Chris Guccione
3355
3136
213
93.5%
1.06
100
113
93.8%
-0.3%
105
59
56.2%
84.06
+20.94
+0.0062
8.881
0.895
1.268
0.098
1.41
22.9%
55.9%
17.8%
50
Dan Bellino
3546
3314
232
93.5%
1.09
120
112
93.5%
-0.1%
103
61
59.2%
97.57
+5.43
+0.0015
9.160
0.892
0.897
0.080
1.21
23.0%
57.1%
18.0%
Showing 1–50 of 91
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