most strikeouts in a season by a reliever

Dick Radatz has fanned the most hitters by a relief pitcher in a season, with 183 strikeouts in 1964.

NAMESOSEASONTMGWLW%GSERACGSHOSVIPHERRHRBBHBPGFIBBTBFWPK/9BB/9K/BBHR/9K%BB%WHIPBABIPRAH/9
1Dick Radatz
D. Radatz
183
1964
79
16
9
.640
0
2.29
0
0
29
157.0
103
40
44
13
58
7
67
9
634
1
10.49
3.32
3.16
0.75
28.9
9.1
1.03
.241
2.52
5.90
2Mark Eichhorn
M. Eichhorn
166
1986
69
14
6
.700
0
1.72
0
0
10
157.0
105
30
32
8
45
7
38
14
612
2
9.52
2.58
3.69
0.46
27.1
7.4
0.96
.251
1.83
6.02
3Dick Radatz
D. Radatz
162
1963
66
15
6
.714
0
2.04
0
0
23
132.1
94
30
31
9
51
5
58
12
541
5
11.02
3.47
3.18
0.61
29.9
9.4
1.10
.271
2.11
6.39
4Brad Lidge
B. Lidge
157
2004
80
6
5
.545
0
1.90
0
0
29
94.2
57
20
21
8
30
6
44
5
369
3
14.93
2.85
5.23
0.76
42.5
8.1
0.92
.292
2.00
5.42
5Dick Selma
D. Selma
153
1970
73
8
9
.471
0
2.75
0
0
22
134.1
108
41
42
8
59
4
47
9
553
10
10.25
3.95
2.59
0.54
27.7
10.7
1.24
.304
2.81
7.24
6Rich Gossage
R. Gossage
151
1977
72
11
9
.550
0
1.62
0
0
26
133.0
78
24
27
9
49
2
55
6
523
2
10.22
3.32
3.08
0.61
28.9
9.4
0.95
.221
1.83
5.28
7Dick Radatz
D. Radatz
144
1962
62
9
6
.600
0
2.24
0
0
24
124.2
95
31
32
9
40
4
53
2
504
3
10.40
2.89
3.60
0.65
28.6
7.9
1.08
.280
2.31
6.86
8Josh Hader
J. Hader
143
2018
55
6
1
.857
0
2.43
0
0
12
81.1
36
22
23
9
30
1
14
0
306
0
15.82
3.32
4.77
1.00
46.7
9.8
0.81
.220
2.55
3.98
9Mike Marshall
M. Marshall
143
1974
106
15
12
.556
0
2.42
0
0
21
208.1
191
56
66
9
56
1
83
1
857
5
6.18
2.42
2.55
0.39
16.7
6.5
1.19
.281
2.85
8.25
10Rob Dibble
R. Dibble
141
1989
74
10
5
.667
0
2.09
0
0
2
99.0
62
23
23
4
39
3
18
11
401
7
12.82
3.55
3.62
0.36
35.2
9.7
1.02
.271
2.09
5.64
11Josh Hader
J. Hader
138
2019
61
3
5
.375
0
2.62
0
0
37
75.2
41
22
24
15
20
4
46
2
289
0
16.41
2.38
6.90
1.78
47.8
6.9
0.81
.232
2.85
4.88
12Carlos Marmol
C. Marmol
138
2010
77
2
3
.400
0
2.55
0
0
38
77.2
40
22
23
1
52
8
70
4
332
2
15.99
6.03
2.65
0.12
41.6
15.7
1.18
.293
2.67
4.64
13Eric Gagne
E. Gagne
137
2003
77
2
3
.400
0
1.20
0
0
55
82.1
37
11
12
2
20
3
67
2
306
2
14.98
2.19
6.85
0.22
44.8
6.5
0.69
.243
1.31
4.04
14Rob Dibble
R. Dibble
136
1990
68
8
3
.727
0
1.74
0
0
11
98.0
62
19
22
3
34
1
29
3
384
3
12.49
3.12
4.00
0.28
35.4
8.9
0.98
.281
2.02
5.69
15Jim Kern
J. Kern
136
1979
71
13
5
.722
0
1.57
0
0
29
143.0
99
25
35
5
62
2
57
6
578
5
8.56
3.90
2.19
0.31
23.5
10.7
1.13
.252
2.20
6.23
16Dellin Betances
D. Betances
135
2014
70
5
0
1.000
0
1.40
0
0
1
90.0
46
14
15
4
24
4
8
1
341
2
13.50
2.40
5.63
0.40
39.6
7.0
0.78
.241
1.50
4.60
17John Hiller
J. Hiller
134
1974
59
17
14
.548
0
2.64
0
0
13
150.0
127
44
51
10
62
3
52
19
633
7
8.04
3.72
2.16
0.60
21.2
9.8
1.26
.276
3.06
7.62
18Duane Ward
D. Ward
132
1991
81
7
6
.538
0
2.77
0
0
23
107.1
80
33
36
3
33
2
46
3
428
6
11.07
2.77
4.00
0.25
30.8
7.7
1.05
.298
3.02
6.71
19Dellin Betances
D. Betances
131
2015
74
6
4
.600
0
1.50
0
0
9
84.0
45
14
17
6
40
3
17
2
332
9
14.04
4.29
3.28
0.64
39.5
12.0
1.01
.257
1.82
4.82
20Mariano Rivera
M. Rivera
130
1996
61
8
3
.727
0
2.09
0
0
5
107.2
73
25
25
1
34
2
14
3
425
1
10.87
2.84
3.82
0.08
30.6
8.0
0.99
.279
2.09
6.10
21Rich Gossage
R. Gossage
130
1975
62
9
8
.529
0
1.84
0
0
26
141.2
99
29
32
3
70
5
49
15
583
3
8.26
4.45
1.86
0.19
22.3
12.0
1.19
.256
2.03
6.29
22Bruce Sutter
B. Sutter
129
1977
62
7
3
.700
0
1.34
0
0
31
107.1
69
16
21
5
23
1
48
7
411
7
10.82
1.93
5.61
0.42
31.4
5.6
0.86
.253
1.76
5.79
23Octavio Dotel
O. Dotel
128
2001
57
6
3
.667
0
1.93
0
0
2
84.0
55
18
21
3
33
2
20
1
339
4
13.71
3.54
3.88
0.32
37.8
9.7
1.05
.301
2.25
5.89
24Armando Benitez
A. Benitez
128
1999
77
4
3
.571
0
1.85
0
0
22
78.0
40
16
17
4
41
0
42
4
312
2
14.77
4.73
3.12
0.46
41.0
13.1
1.04
.259
1.96
4.62
25Scott Garrelts
S. Garrelts
128
1987
64
11
7
.611
0
3.22
0
0
12
106.1
70
38
41
10
55
0
43
4
428
5
10.83
4.66
2.33
0.85
29.9
12.9
1.18
.255
3.47
5.92
StatMuse has game-level data for strikeouts going back to the 1901 season.
Some of the information used here was obtained free of charge from Retrosheet.

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TEAMWLPCTGB
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.610
36
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.590
1.0
29
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.468
8.5
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.468
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Red Sox Red Sox
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Schedule
DATEMATCHUPTIME (ET)
Thu
6/4
@
1:35 PM
Fri
6/5
@
7:05 PM
Sat
6/6
@
7:35 PM
Sun
6/7
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Mon
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Last Game
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MLB 2026 Batting Leaders

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MLB 2026 Standings

NL EastWLPCTGB
42
20
.677
32
29
.525
9.5
31
32
.492
11.5
29
34
.460
13.5
27
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NL CentralWLPCTGB
37
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.627
32
28
.533
5.5
33
29
.532
5.5
32
30
.516
6.5
31
30
.508
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NL WestWLPCTGB
40
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.645
32
28
.533
7.0
32
29
.525
7.5
24
38
.387
16.0
24
39
.381
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AL EastWLPCTGB
36
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.610
36
25
.590
1.0
29
33
.468
8.5
29
33
.468
8.5
26
34
.433
10.5
AL CentralWLPCTGB
36
27
.571
33
29
.532
2.5
29
34
.460
7.0
25
38
.397
11.0
24
38
.387
11.5
AL WestWLPCTGB
33
30
.524
30
31
.492
2.0
30
32
.484
2.5
28
35
.444
5.0
24
39
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MLB 2026 Scores & Schedule

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DATEMATCHUPSCORE
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9-4
Wed
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Schedule

DATEMATCHUPTIME (ET)
Thu
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Thu
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Thu
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Thu
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