jerry koosman most strikeouts in a game

Jerry Koosman struck out his most batters in a game on June 23, 1980 and on May 28, 1969, with 15 strikeouts.

Interpreted as:
Jerry Koosman most strikeouts in a regular-season game
NAMESODATETMOPPDECGSERACGSHOSVIPHERRHRBBHBPGFIBBTBFWP
1Jerry Koosman
J. Koosman
15
6/23/1980
vs
W
1
1.00
1
0
0
9.0
10
1
1
0
2
0
0
0
38
0
2Jerry Koosman
J. Koosman
15
5/28/1969
vs
1
0.00
0
0
0
10.0
4
0
0
0
2
0
0
1
36
0
3Jerry Koosman
J. Koosman
13
8/21/1978
vs
1
0.00
0
0
0
10.0
8
0
2
0
2
0
0
0
40
0
4Jerry Koosman
J. Koosman
13
7/13/1977
vs
L
1
4.50
0
0
0
8.0
7
4
4
1
5
0
0
0
35
1
5Jerry Koosman
J. Koosman
13
9/16/1976
vs
W
1
1.00
1
0
0
9.0
4
1
1
1
3
0
0
0
34
0
6Jerry Koosman
J. Koosman
13
9/8/1969
vs
W
1
2.00
1
0
0
9.0
7
2
2
0
2
1
0
0
36
1
7Jerry Koosman
J. Koosman
12
7/2/1976
vs
W
1
0.00
1
0
0
9.0
3
0
1
0
1
1
0
0
32
0
8Jerry Koosman
J. Koosman
12
7/6/1972
vs
1
0.00
0
0
0
10.0
5
0
0
0
1
0
0
0
34
0
9Jerry Koosman
J. Koosman
12
7/21/1968
@
W
1
0.00
1
1
0
9.0
4
0
0
0
1
0
0
0
32
0
10Jerry Koosman
J. Koosman
11
10/1/1976
@
L
1
2.16
1
0
0
8.1
8
2
2
1
0
0
0
0
32
0
11Jerry Koosman
J. Koosman
11
8/15/1976
vs
W
1
0.00
1
1
0
9.0
5
0
0
0
0
0
0
0
30
0
12Jerry Koosman
J. Koosman
11
8/23/1975
@
1
1.13
0
0
0
8.0
4
1
1
0
4
0
0
0
30
0
13Jerry Koosman
J. Koosman
11
4/25/1974
@
W
1
0.00
1
0
0
9.0
6
0
2
0
3
0
0
0
36
0
14Jerry Koosman
J. Koosman
11
4/14/1974
vs
1
2.57
0
0
0
7.0
5
2
2
0
4
0
0
1
30
0
15Jerry Koosman
J. Koosman
11
9/10/1971
vs
W
1
3.24
0
0
0
8.1
8
3
3
1
2
0
0
0
36
0
16Jerry Koosman
J. Koosman
11
6/7/1969
@
W
1
1.00
1
0
0
9.0
6
1
1
0
2
0
0
0
34
1
17Jerry Koosman
J. Koosman
11
4/23/1968
vs
W
1
1.00
1
0
0
9.0
4
1
1
0
1
0
0
0
31
0
18Jerry Koosman
J. Koosman
10
6/13/1977
@
W
1
0.00
1
0
0
9.0
4
0
1
0
3
0
0
0
34
0
19Jerry Koosman
J. Koosman
10
5/12/1977
vs
L
1
2.57
0
0
0
7.0
5
2
2
1
2
0
0
1
28
0
20Jerry Koosman
J. Koosman
10
9/26/1975
@
W
1
0.00
0
0
0
11.0
4
0
1
0
3
0
0
0
41
0
21Jerry Koosman
J. Koosman
10
8/28/1975
@
W
1
1.00
1
0
0
9.0
8
1
1
0
5
0
0
1
37
0
22Jerry Koosman
J. Koosman
10
9/26/1972
@
W
1
1.04
0
0
0
8.2
4
1
1
1
3
0
0
0
33
0
23Jerry Koosman
J. Koosman
10
5/16/1970
@
W
1
0.00
1
1
0
9.0
4
0
0
0
4
0
0
0
35
0
24Jerry Koosman
J. Koosman
10
5/20/1968
vs
W
1
1.00
1
0
0
9.0
5
1
1
0
2
0
0
0
32
1
25Jerry Koosman
J. Koosman
10
4/17/1968
vs
W
1
0.00
1
1
0
9.0
7
0
0
0
2
0
0
0
36
0
Results may be incomplete. StatMuse has complete 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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DATEMATCHUPTIME (ET)
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Sat
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Last Game
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Sun 28 Sep 2025

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MLB 2025 Scores & Schedule

Scores

DATEMATCHUPSCORE
Tue
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@
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