most wins in a season by a pitcher without a loss on their record

Jack Chesbro has the most wins in wins with more than 0-0 records in a season, with 41 wins in 1904.

NAMEWLRECSEASONTMW%L%GGSERASOCGSHOSVIPHERRHRBBHBPGFIBBTBFWPK/9BB/9K/BBHR/9K%BB%WHIPBABIPRAH/9
1Jack Chesbro
J. Chesbro
41
0
41-0
1904
1.000
.000
41
38
1.17
193
38
6
0
354.2
232
46
64
4
66
5
3
5
4.90
1.67
2.92
0.10
5.0
0.84
.216
1.62
5.89
2Ed Walsh
E. Walsh
40
0
40-0
1908
1.000
.000
40
35
190
34
11
0
342.1
229
41
0
40
8
5
1,288
5
5.00
1.05
4.75
0.00
14.8
3.1
0.79
.218
1.08
6.02
3Christy Mathewson
C. Mathewson
37
0
37-0
1908
1.000
.000
37
32
204
29
11
0
298.1
188
33
1
26
3
5
1,116
2
6.15
0.78
7.85
0.03
18.3
2.3
0.72
.212
1.00
5.67
4Walter Johnson
W. Johnson
36
0
36-0
1913
1.000
.000
36
29
0.56
185
23
11
0
273.2
164
17
27
5
34
5
7
1,002
1
6.08
1.12
5.44
0.16
18.5
3.4
0.72
.206
0.89
5.39
5Joe McGinnity
J. McGinnity
35
0
35-0
1904
1.000
.000
35
31
109
29
9
0
284.0
199
53
6
60
9
4
1,105
1
3.45
1.90
1.82
0.19
9.9
5.4
0.91
.210
1.68
6.31
6Joe Wood
J. Wood
34
0
34-0
1912
1.000
.000
34
33
0.31
223
30
10
0
293.2
222
73
2
58
10
1
1,144
5
6.83
1.78
3.84
0.06
19.5
5.1
0.95
.259
2.24
6.80
7Grover Alexander
G. Alexander
33
0
33-0
1916
1.000
.000
33
33
0.83
139
33
16
0
302.0
216
28
36
2
33
5
0
1,118
3
4.14
0.98
4.21
0.06
12.4
3.0
0.82
.228
1.07
6.44
8Walter Johnson
W. Johnson
33
0
33-0
1912
1.000
.000
33
27
0.16
221
25
7
0
274.1
187
46
0
50
7
6
1,040
7
7.25
1.64
4.42
0.00
21.3
4.8
0.86
.245
1.51
6.13
9Christy Mathewson
C. Mathewson
33
0
33-0
1904
1.000
.000
33
31
151
23
4
0
256.2
183
50
5
53
4
2
992
4
5.29
1.86
2.85
0.18
15.2
5.3
0.92
.228
1.75
6.42
10Cy Young
C. Young
33
0
33-0
1901
1.000
.000
33
31
1.15
130
30
5
0
290.0
232
37
64
5
23
7
2
0
4.03
0.71
5.65
0.16
2.2
0.88
.256
1.99
7.20
11Cy Young
C. Young
32
0
32-0
1902
1.000
.000
32
32
1.38
133
32
3
0
299.0
232
46
71
2
39
6
0
1,149
2
4.00
1.17
3.41
0.06
11.6
3.4
0.91
.237
2.14
6.98
12Denny McLain
D. McLain
31
0
31-0
1968
1.000
.000
31
31
1.62
236
28
6
0
273.0
186
49
54
20
46
5
0
1
1,031
3
7.78
1.52
5.13
0.66
22.9
4.5
0.85
.229
1.78
6.13
13Lefty Grove
L. Grove
31
0
31-0
1931
1.000
.000
31
27
1.80
144
25
4
0
255.1
212
51
69
8
59
1
4
1,021
1
5.08
2.08
2.44
0.28
14.1
5.8
1.06
.252
2.43
7.47
14Jim Bagby
J. Bagby
31
0
31-0
1920
1.000
.000
31
25
1.94
54
25
3
0
246.0
206
53
57
6
53
2
6
970
2
1.98
1.94
1.02
0.22
5.6
5.5
1.05
.234
2.09
7.54
15Grover Alexander
G. Alexander
31
0
31-0
1915
1.000
.000
31
30
0.85
179
29
12
0
276.0
170
26
45
2
44
4
1
1,037
1
5.84
1.43
4.07
0.07
17.3
4.2
0.78
.208
1.47
5.54
16Jack Coombs
J. Coombs
31
0
31-0
1910
1.000
.000
31
27
162
27
11
0
259.0
161
28
0
80
4
4
994
5
5.63
2.78
2.03
0.00
16.3
8.0
0.93
.215
0.97
5.59
17Christy Mathewson
C. Mathewson
31
0
31-0
1905
1.000
.000
31
29
163
25
8
0
254.2
167
45
3
49
0
2
962
3
5.76
1.73
3.33
0.11
16.9
5.1
0.85
.220
1.59
5.90
18Joe McGinnity
J. McGinnity
31
0
31-0
1903
1.000
.000
31
29
113
28
3
0
267.2
204
67
1
67
9
2
1,062
4
3.80
2.25
1.69
0.03
10.6
6.3
1.01
.233
2.25
6.86
19Dizzy Dean
D. Dean
30
0
30-0
1934
1.000
.000
30
26
1.65
153
23
7
0
251.1
195
46
56
9
49
4
4
999
1
5.48
1.75
3.12
0.32
15.3
4.9
0.97
.237
2.01
6.98
20Grover Alexander
G. Alexander
30
0
30-0
1917
1.000
.000
30
30
1.10
146
30
8
0
278.0
213
34
46
2
36
5
0
1,066
1
4.73
1.17
4.06
0.06
13.7
3.4
0.90
.241
1.49
6.90
21Christy Mathewson
C. Mathewson
30
0
30-0
1903
1.000
.000
30
28
176
25
3
0
251.1
206
71
3
61
5
2
1,007
15
6.30
2.18
2.89
0.11
17.5
6.1
1.06
.266
2.54
7.38
22Hal Newhouser
H. Newhouser
29
0
29-0
1944
1.000
.000
29
25
1.82
156
24
6
0
242.2
194
49
52
5
57
1
4
956
3
5.79
2.11
2.74
0.19
16.3
6.0
1.03
.256
1.93
7.20
23Eddie Cicotte
E. Cicotte
29
0
29-0
1919
1.000
.000
29
27
1.00
86
27
5
0
252.2
186
28
39
5
37
3
2
963
0
3.06
1.32
2.32
0.18
8.9
3.8
0.88
.218
1.39
6.63
24Claude Hendrix
C. Hendrix
29
0
29-0
1914
1.000
.000
29
26
1.33
139
26
6
0
250.1
162
37
50
4
52
5
3
4
5.00
1.87
2.67
0.14
5.8
0.85
.226
1.80
5.82
25George Mullin
G. Mullin
29
0
29-0
1909
1.000
.000
29
25
101
23
3
0
239.2
168
51
1
59
7
4
927
2
3.79
2.22
1.71
0.04
10.9
6.4
0.95
.220
1.92
6.31
StatMuse has game-level data for pitcher losses, pitcher wins, and records going back to the 1901 season.
Some of the information used here was obtained free of charge from Retrosheet.

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