Charlie Kerfeld vs. Duke Maas — Career Comparison

Charlie Kerfeld
Baby BoomersMissouriThrows RightBats RightNorth AmericaHouston AstrosAmerican LeagueRelief Pitcher
Duke Maas
Silent GenerationMichiganThrows RightBats RightNorth AmericaNew York YankeesAmerican LeagueStarting Pitcher

Duke Maas built a career as a starting pitcher and Charlie Kerfeld as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Charlie Kerfeld led in home run suppression (HR9+ 170 vs 102), strikeout rate (K%+ 112 vs 88), and run prevention (ERA+ 116 vs 96). Duke Maas held the edge in walk avoidance (BB%+ 110 vs 81). Role difference aside, Charlie Kerfeld holds a clear edge on every meaningful shared measure.

Pitching Stats for Charlie Kerfeld and Duke Maas

Charlie Kerfeld
Career
Per 9 Innings
4
4
Duke Maas
Careerverified
Per 9 Inningsverified
7
7
Charlie Kerfeld
Career
Per 9 Inningsverified
123
5.49
Duke Maas
Careerverified
Per 9 Innings
195
2.39
Charlie Kerfeld
Career
Per 9 Innings
6
0.27
Duke Maas
Careerverified
Per 9 Inningsverified
91
1.11
Charlie Kerfeld
Career
Per 9 Inningsverified
18
0.8
Duke Maas
Careerverified
Per 9 Innings
45
0.55
Charlie Kerfeld
Careerverified
Per 9 Inningsverified
9
0.4
Duke Maas
Career
Per 9 Innings
44
0.54
Charlie Kerfeld
Careerverified
Per 9 Inningsverified
66.67
66.67
Duke Maas
Career
Per 9 Innings
50.56
50.56
Charlie Kerfeld
Career
Per 9 Innings
4.88
4.88
Duke Maas
Careerverified
Per 9 Inningsverified
46.67
46.67
Charlie Kerfeld
Career
Per 9 Innings
0
0
Duke Maas
Careerverified
Per 9 Inningsverified
21
0.26
Charlie Kerfeld
Career
Per 9 Innings
0
0
Duke Maas
Careerverified
Per 9 Inningsverified
7
0.09
Charlie Kerfeld
Career
Per 9 Inningsverified
9
0.4
Duke Maas
Careerverified
Per 9 Innings
15
0.18
Charlie Kerfeld
Careerverified
Per 9 Innings
94
4.2
Duke Maas
Career
Per 9 Inningsverified
342
4.19
Charlie Kerfeld
Career
Per 9 Innings
4.2
4.2
Duke Maas
Careerverified
Per 9 Inningsverified
4.19
4.19
Charlie Kerfeld
Careerverified
Per 9 Inningsverified
4.12
4.12
Duke Maas
Career
Per 9 Innings
4.13
4.13
Charlie Kerfeld
Careerverified
Per 9 Inningsverified
4.02
4.02
Duke Maas
Career
Per 9 Innings
4.52
4.52
Charlie Kerfeld
Careerverified
Per 9 Inningsverified
0.256
0.256
Duke Maas
Career
Per 9 Innings
0.258
0.258
Charlie Kerfeld
Career
Per 9 Innings
605
27
Duke Maas
Careerverified
Per 9 Innings
2204
27
Charlie Kerfeld
Career
Per 9 Innings
201.2
9
Duke Maas
Careerverified
Per 9 Innings
734.2
9
Charlie Kerfeld
Careerverified
Per 9 Inningsverified
189
8.43
Duke Maas
Career
Per 9 Innings
745
9.13
Charlie Kerfeld
Careerverified
Per 9 Inningsverified
8.43
8.43
Duke Maas
Career
Per 9 Innings
9.13
9.13
Charlie Kerfeld
Careerverified
Per 9 Inningsverified
12
0.54
Duke Maas
Career
Per 9 Innings
71
0.87
Charlie Kerfeld
Careerverified
Per 9 Inningsverified
0.54
0.54
Duke Maas
Career
Per 9 Innings
0.87
0.87
Charlie Kerfeld
Careerverified
Per 9 Inningsverified
0.1
0.1
Duke Maas
Career
Per 9 Innings
0.36
0.36
Charlie Kerfeld
Careerverified
Per 9 Innings
117
5.22
Duke Maas
Career
Per 9 Inningsverified
284
3.48
Charlie Kerfeld
Careerverified
Per 9 Innings
11
0.49
Duke Maas
Career
Per 9 Inningsverified
16
0.2
Charlie Kerfeld
Career
Per 9 Innings
5.22
5.22
Duke Maas
Careerverified
Per 9 Inningsverified
3.48
3.48
Charlie Kerfeld
Career
Per 9 Inningsverified
155
6.92
Duke Maas
Careerverified
Per 9 Innings
356
4.36
Charlie Kerfeld
Careerverified
Per 9 Inningsverified
6.92
6.92
Duke Maas
Career
Per 9 Innings
4.36
4.36
Charlie Kerfeld
Career
Per 9 Innings
1.26
1.26
Duke Maas
Careerverified
Per 9 Inningsverified
1.83
1.83
Charlie Kerfeld
Careerverified
Per 9 Inningsverified
1.349
1.349
Duke Maas
Career
Per 9 Innings
0.871
0.871
Charlie Kerfeld
Career
Per 9 Innings
9
0.4
Duke Maas
Career
Per 9 Inningsverified
9
0.11
Charlie Kerfeld
Careerverified
Per 9 Inningsverified
3
0.13
Duke Maas
Career
Per 9 Innings
18
0.22
Charlie Kerfeld
Career
Per 9 Innings
2
0.09
Duke Maas
Careerverified
Per 9 Inningsverified
0
0
Charlie Kerfeld
Career
Per 9 Inningsverified
888
39.63
Duke Maas
Careerverified
Per 9 Innings
3190
39.08
Charlie Kerfeld
Career
Per 9 Inningsverified
53
2.37
Duke Maas
Careerverified
Per 9 Innings
55
0.67
Charlie Kerfeld
Careerverified
Per 9 Inningsverified
104
4.64
Duke Maas
Career
Per 9 Innings
399
4.89
Charlie Kerfeld
Careerverified
Per 9 Inningsverified
4.64
4.64
Duke Maas
Career
Per 9 Innings
4.89
4.89
Charlie Kerfeld
Career
Per 9 Innings
16
0.71
Duke Maas
Careerverified
Per 9 Inningsverified
0
0
Charlie Kerfeld
Career
Per 9 Innings
13
0.58
Duke Maas
Careerverified
Per 9 Inningsverified
0
0
Charlie Kerfeld
Careerverified
Per 9 Inningsverified
25
1.12
Duke Maas
Career
Per 9 Innings
0
0
Charlie Kerfeld
Career
Per 9 Innings
1.517
1.517
Duke Maas
Careerverified
Per 9 Inningsverified
1.401
1.401
Charlie Kerfeld
Career
Per 9 Innings
739
32.98
Duke Maas
Careerverified
Per 9 Inningsverified
2888
35.38
Charlie Kerfeld
Careerverified
Per 9 Inningsverified
0.85
0.85
Duke Maas
Career
Per 9 Innings
2.05
2.05
Charlie Kerfeld
Career
Per 9 Innings
0.309
0.309
Duke Maas
Careerverified
Per 9 Inningsverified
0.274
0.274
Charlie Kerfeld
Careerverified
Per 9 Inningsverified
39.63
39.63
Duke Maas
Career
Per 9 Innings
39.08
39.08

Fielding Stats for Charlie Kerfeld and Duke Maas

Charlie Kerfeld
Career
Per 9 Innings
4
4
Duke Maas
Careerverified
Per 9 Inningsverified
7
7
Charlie Kerfeld
Career
Per 9 Inningsverified
123
5.49
Duke Maas
Careerverified
Per 9 Innings
195
2.39
Charlie Kerfeld
Career
Per 9 Innings
6
0.27
Duke Maas
Careerverified
Per 9 Inningsverified
91
1.11
Charlie Kerfeld
Career
Per 9 Innings
605
27
Duke Maas
Careerverified
Per 9 Innings
2204
27
Charlie Kerfeld
Career
Per 9 Innings
201.2
9
Duke Maas
Careerverified
Per 9 Innings
734.2
9
Charlie Kerfeld
Career
Per 9 Inningsverified
19
0.85
Duke Maas
Careerverified
Per 9 Innings
40
0.49
Charlie Kerfeld
Career
Per 9 Innings
16
0.71
Duke Maas
Careerverified
Per 9 Inningsverified
126
1.54
Charlie Kerfeld
Careerverified
Per 9 Innings
5
0.22
Duke Maas
Career
Per 9 Inningsverified
7
0.09
Charlie Kerfeld
Career
Per 9 Innings
40
1.79
Duke Maas
Careerverified
Per 9 Inningsverified
173
2.12
Charlie Kerfeld
Career
Per 9 Innings
35
1.56
Duke Maas
Careerverified
Per 9 Inningsverified
166
2.03
Charlie Kerfeld
Career
Per 9 Innings
87.5
87.5
Duke Maas
Careerverified
Per 9 Inningsverified
95.95
95.95
Charlie Kerfeld
Career
Per 9 Innings
0.285
0.285
Duke Maas
Careerverified
Per 9 Inningsverified
0.851
0.851
Charlie Kerfeld
Career
Per 9 Innings
4.88
4.88
Duke Maas
Careerverified
Per 9 Inningsverified
46.67
46.67
Charlie Kerfeld
Career
Per 9 Innings
2
0.09
Duke Maas
Careerverified
Per 9 Innings
7
0.09
Charlie Kerfeld
Career
Per 9 Innings
0
0
Duke Maas
Career
Per 9 Innings
0
0
Charlie Kerfeld
Career
Per 9 Innings
0
0
Duke Maas
Career
Per 9 Innings
0
0
Charlie Kerfeld
Career
Per 9 Innings
0
0
Duke Maas
Career
Per 9 Innings
0
0
Charlie Kerfeld
Career
Per 9 Innings
0
0
Duke Maas
Career
Per 9 Innings
0
0

Hitting Stats for Charlie Kerfeld and Duke Maas

Charlie Kerfeld
Career
Per 600 PA
4
4
Duke Maas
Careerverified
Per 600 PAverified
7
7
Charlie Kerfeld
Career
Per 600 PAverified
123
2544.83
Duke Maas
Careerverified
Per 600 PA
195
479.51
Charlie Kerfeld
Career
Per 600 PA
29
600
Duke Maas
Careerverified
Per 600 PA
244
600
Charlie Kerfeld
Career
Per 600 PAverified
26
537.93
Duke Maas
Careerverified
Per 600 PA
214
526.23
Charlie Kerfeld
Career
Per 600 PA
0.039
0.039
Duke Maas
Careerverified
Per 600 PAverified
0.117
0.117
Charlie Kerfeld
Career
Per 600 PA
0.19
0.19
Duke Maas
Careerverified
Per 600 PAverified
0.39
0.39
Charlie Kerfeld
Career
Per 600 PA
1
20.69
Duke Maas
Careerverified
Per 600 PAverified
25
61.48
Charlie Kerfeld
Career
Per 600 PA
1
20.69
Duke Maas
Careerverified
Per 600 PAverified
19
46.72
Charlie Kerfeld
Career
Per 600 PA
0
0
Duke Maas
Careerverified
Per 600 PAverified
4
9.84
Charlie Kerfeld
Career
Per 600 PA
0
0
Duke Maas
Careerverified
Per 600 PAverified
1
2.46
Charlie Kerfeld
Career
Per 600 PA
0
0
Duke Maas
Careerverified
Per 600 PAverified
1
2.46
Charlie Kerfeld
Career
Per 600 PA
0
0
Duke Maas
Careerverified
Per 600 PAverified
6
14.75
Charlie Kerfeld
Career
Per 600 PA
0
0
Duke Maas
Careerverified
Per 600 PAverified
0.24
0.24
Charlie Kerfeld
Career
Per 600 PA
0
0
Duke Maas
Careerverified
Per 600 PAverified
0.005
0.005
Charlie Kerfeld
Career
Per 600 PA
0
0
Duke Maas
Careerverified
Per 600 PAverified
0.04
0.04
Charlie Kerfeld
Career
Per 600 PA
0.08
1.58
Duke Maas
Careerverified
Per 600 PAverified
6.15
15.11
Charlie Kerfeld
Career
Per 600 PA
1
20.69
Duke Maas
Careerverified
Per 600 PAverified
34
83.61
Charlie Kerfeld
Career
Per 600 PA
2
41.38
Duke Maas
Careerverified
Per 600 PAverified
38
93.44
Charlie Kerfeld
Career
Per 600 PA
0.074
0.074
Duke Maas
Careerverified
Per 600 PAverified
0.165
0.165
Charlie Kerfeld
Career
Per 600 PA
0.039
0.039
Duke Maas
Careerverified
Per 600 PAverified
0.159
0.159
Charlie Kerfeld
Career
Per 600 PA
0.113
0.113
Duke Maas
Careerverified
Per 600 PAverified
0.324
0.324
Charlie Kerfeld
Career
Per 600 PA
0
0
Duke Maas
Careerverified
Per 600 PAverified
0.042
0.042
Charlie Kerfeld
Career
Per 600 PA
0.043
0.043
Duke Maas
Careerverified
Per 600 PAverified
0.114
0.114
Charlie Kerfeld
Career
Per 600 PA
0.08
0.08
Duke Maas
Careerverified
Per 600 PAverified
0.245
0.245
Charlie Kerfeld
Career
Per 600 PA
0.1
0.1
Duke Maas
Careerverified
Per 600 PAverified
0.177
0.177
Charlie Kerfeld
Career
Per 600 PA
0
0
Duke Maas
Careerverified
Per 600 PAverified
13
31.97
Charlie Kerfeld
Career
Per 600 PA
1
20.69
Duke Maas
Careerverified
Per 600 PAverified
14
34.43
Charlie Kerfeld
Career
Per 600 PA
1
20.69
Duke Maas
Careerverified
Per 600 PAverified
26
63.93
Charlie Kerfeld
Career
Per 600 PA
-1.72
-35.51
Duke Maas
Careerverified
Per 600 PAverified
0.32
0.79
Charlie Kerfeld
Career
Per 600 PA
0
0
Duke Maas
Career
Per 600 PA
0
0
Charlie Kerfeld
Career
Per 600 PA
1
20.69
Duke Maas
Careerverified
Per 600 PAverified
13
31.97
Charlie Kerfeld
Career
Per 600 PA
0
0
Duke Maas
Career
Per 600 PA
0
0
Charlie Kerfeld
Careerverified
Per 600 PA
16
331.03
Duke Maas
Career
Per 600 PAverified
80
196.72
Charlie Kerfeld
Career
Per 600 PA
1.81
1.81
Duke Maas
Careerverified
Per 600 PAverified
3.05
3.05
Charlie Kerfeld
Career
Per 600 PA
0.06
0.06
Duke Maas
Careerverified
Per 600 PAverified
0.16
0.16
Charlie Kerfeld
Career
Per 600 PAverified
2
41.38
Duke Maas
Careerverified
Per 600 PA
14
34.43
Charlie Kerfeld
Career
Per 600 PA
0
0
Duke Maas
Careerverified
Per 600 PAverified
3
7.38
Charlie Kerfeld
Careerverified
Per 600 PAverified
0
0
Duke Maas
Career
Per 600 PA
2
4.92
Charlie Kerfeld
Career
Per 600 PA
0
0
Duke Maas
Career
Per 600 PA
0
0
Charlie Kerfeld
Career
Per 600 PA
0
0
Duke Maas
Careerverified
Per 600 PAverified
1
2.46
Charlie Kerfeld
Career
Per 600 PA
0
0
Duke Maas
Careerverified
Per 600 PAverified
1
2.46
Charlie Kerfeld
Career
Per 600 PA
Duke Maas
Career
Per 600 PA
0
0