highest strikeout percentage by mlb pitcher in single season

13 pitchers are tied for the highest 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
20Bobby 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
21Jim 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
22Fred 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
23Horacio 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
24Gerry 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
25Ray Krawczyk
R. Krawczyk
54.5
1989
1
0
0
0
13.50
6
0
0
0
2.0
4
3
3
0
1
0
1
0
11
0
27.00
4.50
6.00
0.00
9.1
2.50
1.000
13.50
344
-1.75
-46
18.00
1.2

More MLB News

More Reds Stats

Team Batting Leaders

HR

17

Stewart

Sal Stewart

RBI

61

Stewart

Sal Stewart

AVG

.282

Dunn

Blake Dunn
Team Pitching Leaders

W

10

Burns

Chase Burns

K

116

Burns

Chase Burns

ERA

2.40

Burns

Chase Burns
Team Rankings

HR

107

13th

R

372

21st

SO

715

23rd

ERA

4.57

23rd

2026 Division Standings
TEAMWLPCTGB
54
33
.621
50
40
.556
5.5
47
40
.540
7.0
46
45
.505
10.0
Reds Reds
41
48
.461
14.0
Schedule
DATEMATCHUPTIME (ET)
Tue
7/7
@
7:10 PM
Wed
7/8
@
7:10 PM
Thu
7/9
@
7:10 PM
Fri
7/10
@
7:10 PM
Sat
7/11
@
7:10 PM
Last Game
BAL Orioles

42 - 49

2

Final

3

CIN Reds

41 - 48

Sun 5 Jul 2026

MLB 2026 Batting Leaders

MLB 2026 Pitching Leaders

MLB Fantasy 2026

MLB 2026 Betting

MLB 2026 Standings

NL EastWLPCTGB
52
36
.591
50
40
.556
3.0
48
42
.533
5.0
46
45
.505
7.5
37
53
.411
16.0
NL CentralWLPCTGB
54
33
.621
50
40
.556
5.5
47
40
.540
7.0
46
45
.505
10.0
41
48
.461
14.0
NL WestWLPCTGB
59
31
.656
44
44
.500
14.0
43
45
.489
15.0
37
51
.420
21.0
36
54
.400
23.0
AL EastWLPCTGB
52
34
.605
49
40
.551
4.5
42
47
.472
11.5
42
49
.462
12.5
39
48
.448
13.5
AL CentralWLPCTGB
46
42
.523
47
43
.522
44
47
.484
3.5
39
50
.438
7.5
36
54
.400
11.0
AL WestWLPCTGB
46
44
.511
45
44
.506
0.5
44
47
.484
2.5
41
48
.461
4.5
36
54
.400
10.0

MLB 2026 Scores & Schedule

Scores

DATEMATCHUPSCORE
Sat
6/20
@
6-4
Sat
6/20
@
3-4
Sat
6/20
@
3-2
Sun
6/21
@
9-4
Sun
6/21
@
4-1

Schedule

DATEMATCHUPTIME (ET)
Sun
7/5
@
7:20 PM
Sun
7/5
@
9:30 PM
Mon
7/6
@
2:10 PM
Mon
7/6
@
6:40 PM
Mon
7/6
@
6:45 PM