highest strike out percentage in a single season for pitcher

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.

	NAME	K%	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Mike Freeman M. Freeman	100.0	2021	CIN	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
2	Nick Maton N. Maton	100.0	2021	PHI	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
3	Romy Gonzalez R. Gonzalez	100.0	2021	CWS	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
4	Mike Brosseau M. Brosseau	100.0	2020	TBR	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
5	Dellin Betances D. Betances	100.0	2019	NYY	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
6	Jedd 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
7	Danny Valencia D. Valencia	100.0	2018	BAL	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
8	Joe Nathan J. Nathan	100.0	2015	DET	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
9	Rob Johnson R. Johnson	100.0	2013	STL	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
10	Joe Dawley J. Dawley	100.0	2002	ATL	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
11	Scott Sheldon S. Sheldon	100.0	2000	TEX	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
12	Kevin 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
13	Fred Norman F. Norman	100.0	1967	CHC	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
14	Kenny Greer K. Greer	66.7	1993	NYM	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
15	Jack Spring J. Spring	66.7	1957	BOS	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
16	Waite Hoyt W. Hoyt	66.7	1918	NYG	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
17	Chuck Nieson C. Nieson	62.5	1964	MIN	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
18	Francisco Rodriguez F. Rodriguez	61.9	2002	ANA	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
19	John McMillon J. McMillon	61.5	2023	KCR	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
20	Bobby Sprowl B. Sprowl	60.0	1980	HOU	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
21	Jim Shellenback J. Shellenback	60.0	1973	TEX	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
22	Fred Wenz F. Wenz	60.0	1968	BOS	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
23	Horacio Pina H. Pina	57.1	1978	PHI	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
24	Gerry Hannahs G. Hannahs	55.6	1978	LAD	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
25	Ray Krawczyk R. Krawczyk	54.5	1989	MIL	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

Unlock 2x data

More MLB News

This Date in Baseball - Cal Ripken Jr. plays in his 2,131st consecutive game to set MLB record

Sep 5, 2026

Athletics hit 4 home runs in 3rd inning of 7-6 victory over Mariners

Sep 5, 2026

Snell throws 6 shutout innings and Tucker ends home run drought as Dodgers beat Nationals 5-3

Sep 5, 2026

Dehydrated MLB saves leader Bryan Baker leaves in 9th as Rays win anyway and he says he's OK

Sep 5, 2026

Luis Campusano's 2-run homer in 10th lifts Padres to 3-2 win over Yankees

Sep 5, 2026

Braves beat Phillies 5-2 as Chris Sale outduels Cristopher Sánchez

Sep 5, 2026

More Reds Stats

Team Batting Leaders

31

Stewart

RBI

106

Stewart

AVG

.276

De La Cruz

Team Pitching Leaders

15

Burns

171

Burns

ERA

2.79

Burns

Team Rankings

188

4th

588

24th

1,140

23rd

ERA

4.68

26th

2026 Division Standings

TEAM	W	L	PCT	GB
Brewers	88	54	.620
Cubs	80	62	.563	8.0
Cardinals	71	71	.500	17.0
Pirates	70	72	.493	18.0
Reds	67	74	.475	20.5

Schedule

DATE	MATCHUP			TIME (ET)
Sat 9/5	MIL	@	CIN	6:40 PM
Sun 9/6	MIL	@	CIN	12:10 PM
Mon 9/7	CIN	@	LAD	9:10 PM
Tue 9/8	CIN	@	LAD	10:10 PM
Wed 9/9	CIN	@	LAD	10:10 PM

Last Game

Brewers

88 - 54

Final

Reds

67 - 74

Fri 4 Sep 2026

MLB 2026 Batting Leaders

HR Leaders

40

Schwarber

39

Crow-Armstrong

37

Caminero

RBI Leaders

106

Stewart

102

Burleson

100

Walker

Batting Average Leaders

.317

Alvarez

.316

Arraez

.311

Simpson

Hit Leaders

168

Arraez

166

Lopez

165

Díaz

Run Leaders

105

Crow-Armstrong

100

Wood

95

Reynolds

OBP Leaders

.434

Alvarez

.392

Wood

.391

Harper

SLG Leaders

.601

Alvarez

.570

Crow-Armstrong

.545

García

SB Leaders

45

Nuñez

40

Chisholm

38

Simpson

MLB 2026 Pitching Leaders

Win Leaders

16

Sánchez

16

Gray

15

Burns

Strikeout Leaders

227

Misiorowski

221

Cease

217

Williams

ERA Leaders

1.97

Misiorowski

2.04

Schlittler

2.10

Sale

WHIP Leaders

0.79

Misiorowski

0.90

Yamamoto

0.93

Rasmussen

K/9 Leaders

13.18

Misiorowski

12.72

Cease

11.98

Williams

K/BB Leaders

6.34

Sale

5.82

Misiorowski

5.52

Rasmussen

Walk Leaders

24

Martinez

27

Rasmussen

29

Sale

MLB Fantasy 2026

FanDuel Points Leaders

2,261.8

Ohtani

2,050.5

Crow-Armstrong

1,856.6

Alvarez

DraftKings Points Leaders

1,590.6

Ohtani

1,554

Crow-Armstrong

1,392

Alvarez

MLB 2026 Betting

Best Record ATS

83-58

80-61

81-62

79-63

77-65

76-65

Worst Record ATS

54-88

56-85

59-82

63-79

65-76

66-76

MLB 2026 Standings

NL East	W	L	PCT	GB
Braves	84	57	.596
Phillies	79	62	.560	5.0
Marlins	71	71	.500	13.5
Nationals	67	76	.469	18.0
Mets	64	77	.454	20.0
NL Central	W	L	PCT	GB
Brewers	88	54	.620
Cubs	80	62	.563	8.0
Cardinals	71	71	.500	17.0
Pirates	70	72	.493	18.0
Reds	67	74	.475	20.5
NL West	W	L	PCT	GB
Dodgers	84	57	.596
Padres	74	67	.525	10.0
Diamondbacks	74	68	.521	10.5
Giants	58	84	.408	26.5
Rockies	54	87	.383	30.0

AL East	W	L	PCT	GB
Rays	84	57	.596
Yankees	80	61	.567	4.0
Red Sox	77	65	.542	7.5
Blue Jays	71	71	.500	13.5
Orioles	69	73	.486	15.5
AL Central	W	L	PCT	GB
White Sox	74	67	.525
Guardians	72	70	.507	2.5
Twins	67	74	.475	7.0
Tigers	64	77	.454	10.0
Royals	63	79	.444	11.5
AL West	W	L	PCT	GB
Astros	73	69	.514
Rangers	70	72	.493	3.0
Mariners	66	76	.465	7.0
Athletics	56	86	.394	17.0
Angels	53	88	.376	19.5

MLB 2026 Scores & Schedule

Scores

DATE	MATCHUP			SCORE
Fri 8/21	ATL	@	MIL	1-2
Fri 8/21	STL	@	PHI	6-7
Fri 8/21	TOR	@	NYY	1-3
Fri 8/21	SFG	@	BOS	4-6
Fri 8/21	TBR	@	BAL	3-5

Schedule

DATE	MATCHUP			TIME (ET)
Sat 9/5	ATL	@	PHI	6:05 PM
Sat 9/5	DET	@	CLE	6:10 PM
Sat 9/5	MIL	@	CIN	6:40 PM
Sat 9/5	LAA	@	PIT	6:40 PM
Sat 9/5	BOS	@	BAL	7:05 PM

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.

Related Searches

More MLB News

More Reds Stats

31

106

.276

15

171

2.79

MLB 2026 Batting Leaders

40

39

37

106

102

100

.317

.316

.311

168

166

165

105

100

95

.434

.392

.391

.601

.570

.545

45

40

38

MLB 2026 Pitching Leaders

16

16

15

227

221

217

1.97

2.04

2.10

0.79

0.90

0.93

13.18

12.72

11.98

6.34

5.82

5.52

24

27

29

MLB Fantasy 2026

2,261.8

2,050.5

1,856.6

1,590.6

1,554

1,392

MLB 2026 Betting

MLB 2026 Standings

MLB 2026 Scores & Schedule

Scores

Schedule