who has best pitching winning percentage in a world series career

50 pitchers are tied for the highest career win percentage in the World Series, at 1.000. The first three are Will Klein, Trey Yesavage and Yoshinobu Yamamoto.

NAMEW%SERIESWLGGSERASOCGSHOSVIPHERRHRBBHBPGFIBBTBFWPK/9BB/9K/BBHR/9K%BB%WHIPBABIPRAH/9
1Will Klein
W. Klein
1.000
World Series
1
0
2
0
0.00
5
0
0
0
5.0
2
0
0
0
2
0
2
0
19
1
9.00
3.60
2.50
0.00
26.3
10.5
0.80
.167
0.00
3.60
2Trey Yesavage
T. Yesavage
1.000
World Series
1
0
3
2
2.84
17
0
0
0
12.2
8
4
4
2
4
1
0
0
48
0
12.08
2.84
4.25
1.42
35.4
8.3
0.95
.250
2.84
5.68
3Yoshinobu Yamamoto
Y. Yamamoto
1.000
World Series
4
0
4
3
1.13
19
1
0
0
24.0
11
3
3
1
4
2
1
0
87
0
7.13
1.50
4.75
0.38
21.8
4.6
0.63
.164
1.13
4.13
4Clay Holmes
C. Holmes
1.000
World Series
1
0
5
0
0.00
6
0
0
0
4.1
1
0
0
0
2
1
0
0
16
0
12.46
4.15
3.00
0.00
37.5
12.5
0.69
.143
0.00
2.08
5Andrew Heaney
A. Heaney
1.000
World Series
1
0
2
1
1.59
3
0
0
0
5.2
5
1
1
0
2
0
0
0
23
0
4.76
3.18
1.50
0.00
13.0
8.7
1.24
.278
1.59
7.94
6Merrill Kelly
M. Kelly
1.000
World Series
1
0
1
1
1.29
9
0
0
0
7.0
3
1
1
1
0
0
0
0
24
0
11.57
0.00
1.29
37.5
0.0
0.43
.143
1.29
3.86
7Jon Gray
J. Gray
1.000
World Series
1
0
2
0
0.00
7
0
0
0
4.2
2
0
0
0
0
0
0
0
16
0
13.50
0.00
0.00
43.8
0.0
0.43
.222
0.00
3.86
8José Leclerc
J. Leclerc
1.000
World Series
1
0
3
0
0.00
4
0
0
1
3.1
1
0
0
0
0
0
3
0
11
0
10.80
0.00
0.00
36.4
0.0
0.30
.143
0.00
2.70
9Seranthony Domínguez
S. Domínguez
1.000
World Series
2
0
8
0
2.35
8
0
0
0
7.2
6
2
2
1
7
0
0
0
36
1
9.39
8.22
1.14
1.17
22.2
19.4
1.70
.250
2.35
7.04
10Ranger Suarez
R. Suarez
1.000
World Series
1
0
2
1
0.00
5
0
0
0
5.2
4
0
0
0
1
0
0
0
22
0
7.94
1.59
5.00
0.00
22.7
4.5
0.88
.250
0.00
6.35
11Ian Anderson
I. Anderson
1.000
World Series
1
0
1
1
0.00
4
0
0
0
5.0
0
0
0
0
3
1
0
0
18
0
7.20
5.40
1.33
0.00
22.2
16.7
0.60
.000
0.00
0.00
12Tyler Matzek
T. Matzek
1.000
World Series
1
0
4
0
1.69
7
0
0
0
5.1
6
1
1
0
0
0
0
0
21
0
11.81
0.00
0.00
33.3
0.0
1.13
.429
1.69
10.13
13Blake Treinen
B. Treinen
1.000
World Series
2
0
9
0
5.19
12
0
0
1
8.2
12
5
5
0
3
1
3
1
42
1
12.46
3.12
4.00
0.00
28.6
7.1
1.73
.462
5.19
12.46
14John Curtiss
J. Curtiss
1.000
World Series
1
0
3
0
2.70
3
0
0
0
3.1
4
1
1
1
1
0
2
0
15
0
8.10
2.70
3.00
2.70
20.0
6.7
1.50
.300
2.70
10.80
15Victor González
V. González
1.000
World Series
1
0
4
0
2.45
3
0
0
0
3.2
2
1
1
0
2
0
0
0
14
1
7.36
4.91
1.50
0.00
21.4
14.3
1.09
.222
2.45
4.91
16José Urquidy
J. Urquidy
1.000
World Series
3
0
5
2
1.23
15
0
0
0
14.2
11
2
2
1
1
0
2
0
56
2
9.20
0.61
15.00
0.61
26.8
1.8
0.82
.256
1.23
6.75
17Josh James
J. James
1.000
World Series
1
0
3
0
10.80
5
0
0
0
1.2
2
2
4
1
3
0
0
0
11
0
27.00
16.20
1.67
5.40
45.5
27.3
3.00
.500
21.60
10.80
18Stephen Strasburg
S. Strasburg
1.000
World Series
2
0
2
2
2.51
14
0
0
0
14.1
12
4
4
2
3
0
0
1
58
1
8.79
1.88
4.67
1.26
24.1
5.2
1.05
.256
2.51
7.53
19Walker Buehler
W. Buehler
1.000
World Series
2
0
4
3
0.47
24
0
0
1
19.0
7
1
1
0
3
0
1
0
64
0
11.37
1.42
8.00
0.00
37.5
4.7
0.53
.189
0.47
3.32
20Matt Barnes
M. Barnes
1.000
World Series
1
0
3
0
0.00
4
0
0
0
2.1
2
0
0
0
1
0
0
0
10
1
15.43
3.86
4.00
0.00
40.0
10.0
1.29
.400
0.00
7.71
21Alex Wood
A. Wood
1.000
World Series
1
0
7
1
1.93
13
0
0
0
14.0
6
3
3
2
4
0
3
1
50
0
8.36
2.57
3.25
1.29
26.0
8.0
0.71
.129
1.93
3.86
22Joe Musgrove
J. Musgrove
1.000
World Series
1
0
4
0
6.75
2
0
0
0
4.0
3
3
3
2
1
0
2
1
16
0
4.50
2.25
2.00
4.50
12.5
6.3
1.00
.091
6.75
6.75
23Tony Watson
T. Watson
1.000
World Series
2
0
5
0
0.00
1
0
0
0
3.2
2
0
1
0
1
1
0
0
14
0
2.45
2.45
1.00
0.00
7.1
7.1
0.82
.182
2.45
4.91
24Chris Devenski
C. Devenski
1.000
World Series
1
0
8
0
7.88
8
0
0
0
8.0
7
7
7
3
2
1
5
0
34
0
9.00
2.25
4.00
3.38
23.5
5.9
1.13
.200
7.88
7.88
25Jake Arrieta
J. Arrieta
1.000
World Series
2
0
2
2
2.38
15
0
0
0
11.1
5
3
3
1
6
1
0
0
46
1
11.91
4.76
2.50
0.79
32.6
13.0
0.97
.174
2.38
3.97
StatMuse has game-level data for pitcher win percentage going back to the 1903 playoffs.
Some of the information used here was obtained free of charge from Retrosheet.

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Schedule
DATEMATCHUPTIME (ET)
Tue
5/12
@
10:10 PM
Wed
5/13
@
10:10 PM
Thu
5/14
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10:10 PM
Fri
5/15
@
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MLB 2026 Standings

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28
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.683
19
22
.463
9.0
19
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.463
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NL CentralWLPCTGB
27
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.659
22
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23
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22
19
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22
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NL WestWLPCTGB
24
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0.5
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26
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19
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.452
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18
23
.439
9.5
17
23
.425
10.0
AL CentralWLPCTGB
22
21
.512
19
21
.475
1.5
19
22
.463
2.0
19
22
.463
2.0
18
23
.439
3.0
AL WestWLPCTGB
21
19
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20
22
.476
2.0
19
22
.463
2.5
16
26
.381
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16
26
.381
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MLB 2026 Scores & Schedule

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DATEMATCHUPSCORE
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DATEMATCHUPTIME (ET)
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Tue
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