most strikeouts by a relief pitcher in a day

Randy Johnson has fanned the most batters by a relief pitcher in a day, with 16 strikeouts on July 18, 2001.

NAMESODAYWLW%GSERACGSHOSVIPHERRHRBBHBPGFIBBTBFWPK/9BB/9K/BBHR/9K%BB%WHIPBABIPRAH/9
1Randy Johnson
R. Johnson
16
7/18/2001
1
0
1.000
0
0.00
0
0
0
7.0
1
0
0
0
1
0
1
0
23
0
20.57
1.29
16.00
0.00
69.6
4.3
0.29
.167
0.00
1.29
2Walter Johnson
W. Johnson
15
7/25/1913
0
0
0
0.79
0
0
0
11.1
7
1
2
0
2
0
1
42
0
11.91
1.59
7.50
0.00
35.7
4.8
0.79
.280
1.59
5.56
3Denny McLain
D. McLain
14
6/15/1965
0
0
0
2.70
0
0
0
6.2
6
2
2
0
2
0
0
0
28
1
18.90
2.70
7.00
0.00
50.0
7.1
1.20
.500
2.70
8.10
4Rube Marquard
R. Marquard
14
5/13/1911
0
0
0
0
0
1
8.0
12
5
0
3
1
1
38
0
15.75
3.38
4.67
0.00
36.8
7.9
1.88
.600
5.63
13.50
5Nick Pivetta
N. Pivetta
13
7/17/2023
1
0
1.000
0
0.00
0
0
0
6.0
0
0
0
0
2
0
0
0
20
0
19.50
3.00
6.50
0.00
65.0
10.0
0.33
.000
0.00
0.00
6Billy O'Dell
B. O'Dell
13
7/4/1961
1
0
1.000
0
1.00
0
0
0
9.0
2
1
1
1
1
0
1
0
29
0
13.00
1.00
13.00
1.00
44.8
3.4
0.33
.071
1.00
2.00
7Mark Guthrie
M. Guthrie
12
5/25/1995
1
0
1.000
0
3.00
0
0
0
6.0
4
2
2
1
0
1
0
0
22
0
18.00
0.00
1.50
54.5
0.0
0.67
.375
3.00
6.00
8Diego Segui
D. Segui
12
9/22/1974
0
0
0
4.70
0
0
0
7.2
9
4
4
1
3
0
0
1
34
3
14.09
3.52
4.00
1.17
35.3
8.8
1.57
.444
4.70
10.57
9Jumbo Brown
J. Brown
12
6/3/1933
1
0
1.000
0
0.00
0
0
0
6.1
5
0
0
0
5
0
1
28
1
17.05
7.11
2.40
0.00
42.9
17.9
1.58
.455
0.00
7.11
10Rube Waddell
R. Waddell
12
8/18/1905
0
0
0
0
0
0
7.1
4
0
0
1
0
1
0
14.73
1.23
12.00
0.00
0.68
0.00
4.91
11Lowell Palmer
L. Palmer
11
5/3/1970
1
0
1.000
0
0.84
0
0
0
10.2
4
1
1
0
1
1
1
0
38
3
9.28
0.84
11.00
0.00
28.9
2.6
0.47
.160
0.84
3.38
12Jim Ray
J. Ray
11
4/15/1968
0
0
0
0.00
0
0
0
7.0
2
0
0
0
1
0
0
1
24
0
14.14
1.29
11.00
0.00
45.8
4.2
0.43
.167
0.00
2.57
13Dave Vineyard
D. Vineyard
11
9/7/1964
0
0
0
3.00
0
0
0
6.0
3
2
2
1
2
0
0
0
23
0
16.50
3.00
5.50
1.50
47.8
8.7
0.83
.222
3.00
4.50
14Harvey Haddix
H. Haddix
11
6/15/1964
0
0
0
2.08
0
0
0
8.2
8
2
2
0
0
0
1
0
34
0
11.42
0.00
0.00
32.4
0.0
0.92
.348
2.08
8.31
15Sonny Siebert
S. Siebert
11
5/10/1964
0
0
0
4.50
0
0
0
6.0
7
3
3
1
3
0
0
0
29
0
16.50
4.50
3.67
1.50
37.9
10.3
1.67
.429
4.50
10.50
16Dick Radatz
D. Radatz
11
6/11/1963
1
0
1.000
0
0.00
0
0
0
8.2
3
0
0
0
1
0
1
0
30
0
11.42
1.04
11.00
0.00
36.7
3.3
0.46
.167
0.00
3.12
17Steve Hamilton
S. Hamilton
11
5/11/1963
1
0
1.000
0
0.00
0
0
0
8.1
3
0
0
0
0
0
1
0
28
0
11.88
0.00
0.00
39.3
0.0
0.36
.176
0.00
3.24
18Dave Hillman
D. Hillman
11
5/28/1959
1
0
1.000
0
2.35
0
0
0
7.2
5
2
2
1
1
0
0
1
29
1
12.91
1.17
11.00
1.17
37.9
3.4
0.78
.250
2.35
5.87
19Gene Conley
G. Conley
11
5/2/1959
0
0
0
0.00
0
0
0
9.0
6
0
0
0
1
0
1
0
33
0
11.00
1.00
11.00
0.00
33.3
3.0
0.78
.286
0.00
6.00
20Larry Jansen
L. Jansen
11
8/18/1953
0
0
0
0.00
0
0
0
8.0
2
0
0
0
3
0
0
1
29
0
12.38
3.38
3.67
0.00
37.9
10.3
0.63
.133
0.00
2.25
21Tom Hughes
T. Hughes
11
5/22/1909
0
0
0
0
0
1
6.0
5
0
0
0
0
1
23
0
16.50
0.00
0.00
47.8
0.0
0.83
.417
0.00
7.50
22Gus Dorner
G. Dorner
11
5/26/1903
0
0
0
3.86
0
0
0
7.0
5
3
3
1
2
0
1
0
14.14
2.57
5.50
1.29
1.00
3.86
6.43
23Sean Burke
S. Burke
10
9/27/2025
0
0
0
2.08
0
0
0
4.1
2
1
2
1
1
0
0
0
18
0
20.77
2.08
10.00
2.08
55.6
5.6
0.69
.167
4.15
4.15
24Cade Povich
C. Povich
10
8/16/2025
0
0
0
5.40
0
0
0
5.0
5
3
3
0
3
0
0
0
22
1
18.00
5.40
3.33
0.00
45.5
13.6
1.60
.556
5.40
9.00
25Nick Pivetta
N. Pivetta
10
6/26/2024
0
1
.000
0
3.00
0
0
0
6.0
4
2
3
1
0
0
0
0
23
0
15.00
0.00
1.50
43.5
0.0
0.67
.250
4.50
6.00
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
58
31
.652
43
44
.494
14.0
Diamondbacks Diamondbacks
43
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.494
14.0
36
51
.414
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Schedule
DATEMATCHUPTIME (ET)
Sat
7/4
@
9:40 PM
Sun
7/5
@
4:00 PM
Mon
7/6
@
9:40 PM
Tue
7/7
@
9:40 PM
Wed
7/8
@
10:10 PM
Last Game
MIL Brewers

54 - 32

7

Final

4

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Fri 3 Jul 2026

MLB 2026 Batting Leaders

MLB 2026 Pitching Leaders

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MLB 2026 Betting

MLB 2026 Standings

NL EastWLPCTGB
51
35
.593
49
39
.557
3.0
47
42
.528
5.5
46
43
.517
6.5
36
52
.409
16.0
NL CentralWLPCTGB
54
32
.628
49
39
.557
6.0
46
39
.541
7.5
44
45
.494
11.5
40
47
.460
14.5
NL WestWLPCTGB
58
31
.652
43
44
.494
14.0
43
44
.494
14.0
36
51
.414
21.0
36
53
.404
22.0
AL EastWLPCTGB
52
33
.612
49
38
.563
4.0
42
46
.477
11.5
41
48
.461
13.0
38
48
.442
14.5
AL CentralWLPCTGB
47
42
.528
45
42
.517
1.0
42
47
.472
5.0
38
50
.432
8.5
35
53
.398
11.5
AL WestWLPCTGB
45
43
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0.5
43
47
.478
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41
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.466
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36
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MLB 2026 Scores & Schedule

Scores

DATEMATCHUPSCORE
Fri
6/19
@
2-16
Fri
6/19
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3-4
Fri
6/19
@
0-5
Fri
6/19
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3-4
Fri
6/19
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7-9

Schedule

DATEMATCHUPTIME (ET)
Sat
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Sat
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1:35 PM
Sat
7/4
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4:05 PM
Sat
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7:10 PM