highest strikeout percentage by mlb pitcher season

13 pitchers are tied for the best strikeout percentage in a season, with a strikeout percentage of 100.0. The first three are Mike Freeman, Nick Maton and Romy Gonzalez in 2021.

NAMEK%SEASONTMGWLW%GSERASOCGSHOSVIPHERRHRBBHBPGFIBBTBFWPK/9BB/9K/BBHR/9BB%WHIPBABIPRAERA-FIPFIP-H/9PRAA
1Mike Freeman
M. Freeman
100.0
2021
1
0
0
0
0.00
1
0
0
0
0.1
0
0
0
0
0
0
1
0
1
0
27.00
0.00
0.00
0.0
0.00
0.00
0
-2.84
-64
0.00
0.3
2Nick Maton
N. Maton
100.0
2021
1
0
0
0
0.00
1
0
0
0
0.1
0
0
0
0
0
0
1
0
1
0
27.00
0.00
0.00
0.0
0.00
0.00
0
-2.84
-66
0.00
0.3
3Romy Gonzalez
R. Gonzalez
100.0
2021
1
0
0
0
0.00
1
0
0
0
0.1
0
0
0
0
0
0
1
0
1
0
27.00
0.00
0.00
0.0
0.00
0.00
0
-2.84
-64
0.00
0.3
4Mike Brosseau
M. Brosseau
100.0
2020
1
0
0
0
0.00
1
0
0
0
0.1
0
0
0
0
0
0
1
0
1
0
27.00
0.00
0.00
0.0
0.00
0.00
0
-2.82
-66
0.00
0.3
5Dellin Betances
D. Betances
100.0
2019
1
0
0
0
0.00
2
0
0
0
0.2
0
0
0
0
0
0
0
0
2
0
27.00
0.00
0.00
0.0
0.00
0.00
0
-2.80
-60
0.00
0.5
6Jedd Gyorko
J. Gyorko
100.0
2019
TOT
1
0
0
0
0.00
1
0
0
0
0.1
0
0
0
0
0
0
1
0
1
0
27.00
0.00
0.00
0.0
0.00
0.00
0
-2.80
-65
0.00
0.3
7Danny Valencia
D. Valencia
100.0
2018
1
0
0
0
0.00
1
0
0
0
0.1
0
0
0
0
0
0
1
0
1
0
27.00
0.00
0.00
0.0
0.00
0.00
0
-2.84
-65
0.00
0.3
8Joe Nathan
J. Nathan
100.0
2015
1
0
0
0
0.00
1
0
0
1
0.1
0
0
0
0
0
0
1
0
1
0
27.00
0.00
0.00
0.0
0.00
0.00
0
-2.87
-70
0.00
0.3
9Rob Johnson
R. Johnson
100.0
2013
1
0
0
0
0.00
1
0
0
0
0.1
0
0
0
0
0
0
1
0
1
0
27.00
0.00
0.00
0.0
0.00
0.00
0
-2.96
-79
0.00
0.2
10Joe Dawley
J. Dawley
100.0
2002
1
0
0
0
0.00
1
0
0
0
0.1
0
0
0
0
0
0
1
0
1
0
27.00
0.00
0.00
0.0
0.00
0.00
0
-3.05
-73
0.00
0.3
11Scott Sheldon
S. Sheldon
100.0
2000
1
0
0
0
0.00
1
0
0
0
0.1
0
0
0
0
0
0
0
0
1
0
27.00
0.00
0.00
0.0
0.00
0.00
0
-2.87
-58
0.00
0.3
12Kevin Seitzer
K. Seitzer
100.0
1993
TOT
1
0
0
0
0.00
1
0
0
0
0.1
0
0
0
0
0
0
1
0
1
0
27.00
0.00
0.00
0.0
0.00
0.00
0
-3.02
-71
0.00
0.3
13Fred Norman
F. Norman
100.0
1967
1
0
0
0
0.00
3
0
0
0
1.0
0
0
0
0
0
0
1
0
3
0
27.00
0.00
0.00
0.0
0.00
0.00
0
-3.46
-102
0.00
0.7
14Kenny Greer
K. Greer
66.7
1993
1
1
0
1.000
0
0.00
2
0
0
0
1.0
0
0
0
0
0
0
1
0
3
0
18.00
0.00
0.00
0.0
0.00
.000
0.00
0
-1.02
-26
0.00
0.6
15Jack Spring
J. Spring
66.7
1957
1
0
0
0
0.00
2
0
0
0
1.0
0
0
0
0
0
0
1
0
3
0
18.00
0.00
0.00
0.0
0.00
.000
0.00
0
-1.54
-37
0.00
0.6
16Waite Hoyt
W. Hoyt
66.7
1918
1
0
0
0
0.00
2
0
0
0
1.0
0
0
0
0
0
0
0
3
0
18.00
0.00
0.00
0.0
0.00
.000
0.00
0
-1.77
-68
0.00
0.5
17Chuck Nieson
C. Nieson
62.5
1964
2
0
0
0
4.50
5
0
0
0
2.0
1
1
1
1
1
0
1
0
8
0
22.50
4.50
5.00
4.50
12.5
1.00
.000
4.50
122
5.60
146
4.50
-0.4
18Francisco Rodriguez
F. Rodriguez
61.9
2002
5
0
0
0
0.00
13
0
0
0
5.2
3
0
0
0
2
1
4
1
21
0
20.65
3.18
6.50
0.00
9.5
0.88
.600
0.00
0
-0.05
-1
4.76
2.8
19John McMillon
J. McMillon
61.5
2023
4
0
0
0
2.25
8
0
0
0
4.0
1
1
1
1
0
0
3
0
13
0
18.00
0.00
2.25
0.0
0.25
.000
2.25
50
2.50
58
2.25
0.8
20Alec Gamboa
A. Gamboa
60.0
2026
2
0
0
0
0.00
3
0
0
0
1.2
0
0
0
0
0
0
2
0
5
0
16.20
0.00
0.00
0.0
0.00
.000
0.00
0
-0.50
-12
0.00
0.9
21Bobby Sprowl
B. Sprowl
60.0
1980
1
0
0
0
0.00
3
0
0
0
1.0
1
0
0
0
1
0
0
0
5
0
27.00
9.00
3.00
0.00
20.0
2.00
1.000
0.00
0
-0.26
-7
9.00
0.4
22Jim Shellenback
J. Shellenback
60.0
1973
2
0
0
0
0.00
3
0
0
0
1.2
0
0
0
0
0
0
0
0
5
0
16.20
0.00
0.00
0.0
0.00
.000
0.00
0
-1.04
-28
0.00
0.9
23Fred Wenz
F. Wenz
60.0
1968
1
0
0
0
0.00
3
0
0
0
1.0
0
0
0
0
2
0
1
0
5
0
27.00
18.00
1.50
0.00
40.0
2.00
0.00
0
2.39
70
0.00
0.1
24Horacio Pina
H. Pina
57.1
1978
2
0
0
0
0.00
4
0
0
0
2.1
0
0
0
0
0
0
0
0
7
0
15.43
0.00
0.00
0.0
0.00
.000
0.00
0
-0.85
-24
0.00
1.1
25Gerry Hannahs
G. Hannahs
55.6
1978
1
0
0
0
9.00
5
0
0
0
2.0
3
2
2
0
0
0
0
0
9
2
22.50
0.00
0.00
0.0
1.50
.750
9.00
257
-2.43
-68
13.50
1.3

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TEAMWLPCTGB
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.623
38
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.559
4.5
37
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.521
7.0
36
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.500
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DATEMATCHUPTIME (ET)
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Tue
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MLB 2026 Standings

NL EastWLPCTGB
46
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.648
38
33
.535
8.0
37
35
.514
9.5
36
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.500
10.5
32
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.451
14.0
NL CentralWLPCTGB
43
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.623
38
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.559
4.5
37
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.521
7.0
36
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.500
8.5
33
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.478
10.0
NL WestWLPCTGB
45
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.625
37
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.529
7.0
35
35
.500
9.0
28
43
.394
16.5
26
45
.366
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AL EastWLPCTGB
43
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.614
40
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.597
1.5
34
38
.472
10.0
34
39
.466
10.5
29
39
.426
13.0
AL CentralWLPCTGB
38
32
.543
39
33
.542
32
40
.444
7.0
29
42
.408
9.5
29
43
.403
10.0
AL WestWLPCTGB
37
36
.507
35
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.500
0.5
34
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.486
1.5
33
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.452
4.0
29
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.408
7.0

MLB 2026 Scores & Schedule

Scores

DATEMATCHUPSCORE
Sat
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