most wins by rookie pitcher after 1940

Since 1941, 4 pitchers are tied for winning the most games by a rookie, with 21 wins. The first three are Larry Jansen in 1947, Dave Ferriss in 1945 and Bill Voiselle in 1944.

Interpreted as:
most regular-season wins by rookie pitcher after 1940
NAMEWSEASONTMLW%GGSERASOCGSHOSVIPHERRHRBBHBPGFIBBTBFWPK/9BB/9K/BBHR/9K%BB%WHIPBABIPRAERA-FIPFIP-H/9PRAA
1Larry Jansen
L. Jansen
21
1947
5
.808
42
30
3.16
104
20
1
1
248.0
241
87
102
22
57
1
5
985
2
3.77
2.07
1.82
0.80
10.6
5.8
1.20
.273
3.70
77
3.51
87
8.75
14.4
2Dave Ferriss
D. Ferriss
21
1945
10
.677
35
31
2.96
94
26
5
2
264.2
263
87
101
6
85
7
4
1,103
4
3.20
2.89
1.11
0.20
8.5
7.7
1.31
.282
3.43
85
3.17
89
8.94
12
3Bill Voiselle
B. Voiselle
21
1944
16
.568
43
41
3.02
161
25
1
0
312.2
276
105
138
31
118
4
1
1,327
7
4.63
3.40
1.36
0.89
12.1
8.9
1.26
.242
3.97
82
3.97
107
7.94
-9
4Johnny Beazley
J. Beazley
21
1942
6
.778
43
23
2.13
91
13
3
3
215.1
181
51
67
4
73
3
15
890
7
3.80
3.05
1.25
0.17
10.2
8.2
1.18
.246
2.80
63
2.87
82
7.57
15.3
5Tom Browning
T. Browning
20
1985
9
.690
38
38
3.55
155
6
4
0
261.1
242
103
111
29
73
3
0
8
1,083
2
5.34
2.51
2.12
1.00
14.3
6.7
1.21
.259
3.82
95
3.81
102
8.33
-1.9
6Bob Grim
B. Grim
20
1954
6
.769
37
20
3.26
108
8
1
1
199.0
175
72
78
9
85
3
8
825
4
4.88
3.84
1.27
0.41
13.1
10.3
1.31
.268
3.53
92
3.23
91
7.91
7.1
7Harvey Haddix
H. Haddix
20
1953
9
.690
36
33
3.06
163
19
6
1
253.0
220
86
97
24
69
4
2
1,031
9
5.80
2.45
2.36
0.85
15.8
6.7
1.14
.254
3.45
71
3.40
79
7.83
25.1
8Alex Kellner
A. Kellner
20
1949
12
.625
38
27
3.75
94
19
0
1
245.0
243
102
120
18
129
2
9
1,069
7
3.45
4.74
0.73
0.66
8.8
12.1
1.52
.272
4.41
89
4.30
102
8.93
-2.3
9Gene Bearden
G. Bearden
20
1948
7
.741
37
29
2.43
80
15
6
1
229.2
187
62
72
9
106
3
4
935
5
3.13
4.15
0.75
0.35
8.6
11.3
1.28
.242
2.82
60
3.90
99
7.33
0.4
10Mark Fidrych
M. Fidrych
19
1976
9
.679
31
29
2.34
97
24
4
0
250.1
217
65
76
12
53
3
2
3
996
6
3.49
1.91
1.83
0.43
9.7
5.3
1.08
.247
2.73
63
3.15
86
7.80
13.7
11Jerry Koosman
J. Koosman
19
1968
12
.613
35
34
2.08
178
17
7
0
263.2
221
61
72
16
69
8
0
7
1,058
8
6.08
2.36
2.58
0.55
16.8
6.5
1.10
.260
2.46
70
2.70
96
7.54
3.7
12Wally Bunker
W. Bunker
19
1964
5
.792
29
29
2.69
96
12
1
0
214.0
161
64
72
17
62
3
0
5
850
3
4.04
2.61
1.55
0.71
11.3
7.3
1.04
.214
3.03
77
3.65
100
6.77
-0.2
13Gary Peters
G. Peters
19
1963
8
.704
41
30
2.33
189
13
4
1
243.0
192
63
69
9
68
8
4
2
978
5
7.00
2.52
2.78
0.33
19.3
7.0
1.07
.260
2.56
67
2.34
67
7.11
32.1
14Jack Sanford
J. Sanford
19
1957
8
.704
33
33
3.08
188
15
3
0
236.2
194
81
94
22
94
3
0
2
989
12
7.15
3.57
2.00
0.84
19.0
9.5
1.22
.252
3.57
80
3.31
87
7.38
12.6
15Dick Newsome
D. Newsome
19
1941
10
.655
36
29
4.13
58
17
2
0
213.2
235
98
115
13
79
7
4
944
6
2.44
3.33
0.73
0.55
6.1
8.4
1.47
.282
4.84
97
4.12
99
9.90
1.6
16Elmer Riddle
E. Riddle
19
1941
4
.826
33
22
2.24
80
15
4
1
216.2
180
54
68
8
59
5
4
884
2
3.32
2.45
1.36
0.33
9.0
6.7
1.10
.235
2.82
62
3.29
89
7.48
9.6
17Lance Lynn
L. Lynn
18
2012
7
.720
35
29
3.78
180
0
0
0
176.0
168
74
76
16
64
10
2
3
744
3
9.20
3.27
2.81
0.82
24.2
8.6
1.32
.321
3.89
98
3.48
90
8.59
7.4
18Carl Morton
C. Morton
18
1970
11
.621
43
37
3.60
154
10
4
0
284.2
281
114
123
27
125
4
1
17
1,218
2
4.87
3.95
1.23
0.85
12.6
10.3
1.43
.280
3.89
87
4.14
106
8.88
-6.8
19Chuck Estrada
C. Estrada
18
1960
11
.621
36
25
3.58
144
12
1
2
208.2
162
83
87
18
101
15
6
3
883
2
6.21
4.36
1.43
0.78
16.3
11.4
1.26
.238
3.75
97
3.94
104
6.99
-4
20Ken Burkhart
K. Burkhart
18
1945
8
.692
42
22
2.90
67
12
4
3
217.1
206
70
76
9
66
3
12
901
3
2.77
2.73
1.02
0.37
7.4
7.3
1.25
.261
3.15
76
3.41
92
8.53
6.9
21Justin Verlander
J. Verlander
17
2006
9
.654
30
30
3.63
124
1
1
0
186.0
187
75
78
21
60
6
0
1
776
5
6.00
2.90
2.07
1.02
16.0
7.7
1.33
.294
3.77
80
4.34
96
9.05
3.6
22CC Sabathia
CC Sabathia
17
2001
5
.773
33
33
4.39
171
0
0
0
180.1
149
88
93
19
95
7
0
1
763
7
8.53
4.74
1.80
0.95
22.4
12.5
1.35
.276
4.64
98
4.21
94
7.44
5.2
23Freddy Garcia
F. Garcia
17
1999
8
.680
33
33
4.07
170
2
1
0
201.1
205
91
96
18
90
10
0
4
888
12
7.60
4.02
1.89
0.80
19.1
10.1
1.47
.312
4.29
87
4.09
87
9.16
13.7
24Dave Fleming
D. Fleming
17
1992
10
.630
33
33
3.39
112
7
4
0
228.1
225
86
95
13
60
4
0
3
946
8
4.41
2.36
1.87
0.51
11.8
6.3
1.25
.280
3.74
86
3.38
86
8.87
14.2
25Tom Gordon
T. Gordon
17
1989
9
.654
49
16
3.64
153
1
1
1
163.0
122
66
67
10
86
1
16
4
677
12
8.45
4.75
1.78
0.55
22.6
12.7
1.28
.262
3.70
94
3.28
89
6.74
7.3

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DATEMATCHUPTIME (ET)
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Fri
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48
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11.0
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13.0
AL CentralWLPCTGB
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44
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.512
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9.0
35
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AL WestWLPCTGB
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DATEMATCHUPSCORE
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