Jamie Arnold vs. Roy Mahaffey — Career Comparison

Jamie Arnold
Gen XMichiganThrows RightBats RightNorth AmericaLos Angeles DodgersNational LeagueRelief Pitcher
Roy Mahaffey
Greatest GenerationSouth CarolinaThrows RightBats RightNorth AmericaPhiladelphia AthleticsAmerican LeagueStarting Pitcher

Roy Mahaffey built a career as a starting pitcher and Jamie Arnold as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Roy Mahaffey posted stronger surface numbers — ERA 5.01 and WHIP 1.546 compared to 5.73 and 1.652 for Jamie Arnold. By the career numbers, Roy Mahaffey had the better of this cross-role comparison — though era context would sharpen the verdict.

Pitching Stats for Jamie Arnold and Roy Mahaffey

Jamie Arnold
Career
Per 9 Innings
2
2
Roy Mahaffey
Careerverified
Per 9 Inningsverified
9
9
Jamie Arnold
Career
Per 9 Inningsverified
50
4.15
Roy Mahaffey
Careerverified
Per 9 Innings
224
1.91
Jamie Arnold
Career
Per 9 Innings
7
0.58
Roy Mahaffey
Careerverified
Per 9 Inningsverified
128
1.09
Jamie Arnold
Career
Per 9 Innings
2
0.17
Roy Mahaffey
Careerverified
Per 9 Inningsverified
67
0.57
Jamie Arnold
Careerverified
Per 9 Innings
7
0.58
Roy Mahaffey
Career
Per 9 Inningsverified
49
0.42
Jamie Arnold
Career
Per 9 Innings
22.22
22.22
Roy Mahaffey
Careerverified
Per 9 Inningsverified
57.76
57.76
Jamie Arnold
Career
Per 9 Innings
14
14
Roy Mahaffey
Careerverified
Per 9 Inningsverified
57.14
57.14
Jamie Arnold
Career
Per 9 Innings
0
0
Roy Mahaffey
Careerverified
Per 9 Inningsverified
45
0.38
Jamie Arnold
Career
Per 9 Innings
0
0
Roy Mahaffey
Career
Per 9 Innings
0
0
Jamie Arnold
Career
Per 9 Inningsverified
2
0.17
Roy Mahaffey
Careerverified
Per 9 Innings
5
0.04
Jamie Arnold
Careerverified
Per 9 Innings
69
5.73
Roy Mahaffey
Career
Per 9 Inningsverified
588
5.01
Jamie Arnold
Career
Per 9 Innings
5.73
5.73
Roy Mahaffey
Careerverified
Per 9 Inningsverified
5.01
5.01
Jamie Arnold
Career
Per 9 Innings
5.32
5.32
Roy Mahaffey
Careerverified
Per 9 Inningsverified
4.8
4.8
Jamie Arnold
Career
Per 9 Innings
4.95
4.95
Roy Mahaffey
Careerverified
Per 9 Inningsverified
4.7
4.7
Jamie Arnold
Career
Per 9 Innings
0.285
0.285
Roy Mahaffey
Careerverified
Per 9 Inningsverified
0.278
0.278
Jamie Arnold
Career
Per 9 Innings
325
27
Roy Mahaffey
Careerverified
Per 9 Innings
3168
27
Jamie Arnold
Career
Per 9 Innings
108.1
9
Roy Mahaffey
Careerverified
Per 9 Innings
1056
9
Jamie Arnold
Careerverified
Per 9 Inningsverified
119
9.89
Roy Mahaffey
Career
Per 9 Innings
1181
10.07
Jamie Arnold
Careerverified
Per 9 Inningsverified
9.89
9.89
Roy Mahaffey
Career
Per 9 Innings
10.07
10.07
Jamie Arnold
Careerverified
Per 9 Inningsverified
7
0.58
Roy Mahaffey
Career
Per 9 Innings
84
0.72
Jamie Arnold
Careerverified
Per 9 Inningsverified
0.58
0.58
Roy Mahaffey
Career
Per 9 Innings
0.72
0.72
Jamie Arnold
Careerverified
Per 9 Inningsverified
0.14
0.14
Roy Mahaffey
Career
Per 9 Innings
0.38
0.38
Jamie Arnold
Careerverified
Per 9 Innings
58
4.82
Roy Mahaffey
Career
Per 9 Inningsverified
452
3.85
Jamie Arnold
Career
Per 9 Innings
2
0.17
Roy Mahaffey
Careerverified
Per 9 Inningsverified
0
0
Jamie Arnold
Career
Per 9 Innings
4.82
4.82
Roy Mahaffey
Careerverified
Per 9 Inningsverified
3.85
3.85
Jamie Arnold
Career
Per 9 Inningsverified
42
3.49
Roy Mahaffey
Careerverified
Per 9 Innings
365
3.11
Jamie Arnold
Careerverified
Per 9 Inningsverified
3.49
3.49
Roy Mahaffey
Career
Per 9 Innings
3.11
3.11
Jamie Arnold
Career
Per 9 Innings
0.84
0.84
Roy Mahaffey
Careerverified
Per 9 Inningsverified
1.63
1.63
Jamie Arnold
Careerverified
Per 9 Inningsverified
0.923
0.923
Roy Mahaffey
Career
Per 9 Innings
0.774
0.774
Jamie Arnold
Careerverified
Per 9 Innings
5
0.42
Roy Mahaffey
Career
Per 9 Inningsverified
31
0.26
Jamie Arnold
Careerverified
Per 9 Innings
10
0.83
Roy Mahaffey
Career
Per 9 Inningsverified
24
0.2
Jamie Arnold
Career
Per 9 Innings
0
0
Roy Mahaffey
Career
Per 9 Innings
0
0
Jamie Arnold
Career
Per 9 Inningsverified
494
41.04
Roy Mahaffey
Careerverified
Per 9 Innings
4718
40.21
Jamie Arnold
Career
Per 9 Inningsverified
23
1.91
Roy Mahaffey
Careerverified
Per 9 Innings
47
0.4
Jamie Arnold
Careerverified
Per 9 Innings
81
6.73
Roy Mahaffey
Career
Per 9 Inningsverified
673
5.74
Jamie Arnold
Career
Per 9 Innings
6.73
6.73
Roy Mahaffey
Careerverified
Per 9 Inningsverified
5.74
5.74
Jamie Arnold
Career
Per 9 Innings
5
0.42
Roy Mahaffey
Careerverified
Per 9 Inningsverified
0
0
Jamie Arnold
Career
Per 9 Innings
4
0.33
Roy Mahaffey
Careerverified
Per 9 Inningsverified
0
0
Jamie Arnold
Careerverified
Per 9 Inningsverified
21
1.74
Roy Mahaffey
Career
Per 9 Innings
0
0
Jamie Arnold
Career
Per 9 Innings
1.634
1.634
Roy Mahaffey
Careerverified
Per 9 Inningsverified
1.546
1.546
Jamie Arnold
Career
Per 9 Innings
417
34.64
Roy Mahaffey
Careerverified
Per 9 Inningsverified
4242
36.15
Jamie Arnold
Careerverified
Per 9 Inningsverified
1.62
1.62
Roy Mahaffey
Career
Per 9 Innings
3
3
Jamie Arnold
Career
Per 9 Innings
0.304
0.304
Roy Mahaffey
Careerverified
Per 9 Inningsverified
0.289
0.289
Jamie Arnold
Careerverified
Per 9 Inningsverified
41.04
41.04
Roy Mahaffey
Career
Per 9 Innings
40.21
40.21

Fielding Stats for Jamie Arnold and Roy Mahaffey

Jamie Arnold
Career
Per 9 Inningsverified
2
2
Roy Mahaffey
Careerverified
Per 9 Innings
9
Jamie Arnold
Career
Per 9 Inningsverified
50
4.15
Roy Mahaffey
Careerverified
Per 9 Innings
224
Jamie Arnold
Careerverified
Per 9 Inningsverified
7
0.58
Roy Mahaffey
Career
Per 9 Innings
0
Jamie Arnold
Careerverified
Per 9 Inningsverified
325
27
Roy Mahaffey
Career
Per 9 Innings
0
Jamie Arnold
Careerverified
Per 9 Inningsverified
108.1
9
Roy Mahaffey
Career
Per 9 Innings
0
Jamie Arnold
Career
Per 9 Inningsverified
5
0.42
Roy Mahaffey
Careerverified
Per 9 Innings
34
Jamie Arnold
Career
Per 9 Inningsverified
22
1.83
Roy Mahaffey
Careerverified
Per 9 Innings
152
Jamie Arnold
Careerverified
Per 9 Innings
2
0.17
Roy Mahaffey
Career
Per 9 Inningsverified
12
Jamie Arnold
Career
Per 9 Inningsverified
29
2.41
Roy Mahaffey
Careerverified
Per 9 Innings
198
Jamie Arnold
Career
Per 9 Inningsverified
27
2.24
Roy Mahaffey
Careerverified
Per 9 Innings
186
Jamie Arnold
Career
Per 9 Inningsverified
93.1
93.1
Roy Mahaffey
Careerverified
Per 9 Innings
93.94
Jamie Arnold
Career
Per 9 Inningsverified
0.54
0.54
Roy Mahaffey
Careerverified
Per 9 Innings
0.83
Jamie Arnold
Careerverified
Per 9 Inningsverified
14
14
Roy Mahaffey
Career
Per 9 Innings
0
Jamie Arnold
Career
Per 9 Inningsverified
5
0.42
Roy Mahaffey
Careerverified
Per 9 Innings
11
Jamie Arnold
Career
Per 9 Innings
0
0
Roy Mahaffey
Career
Per 9 Innings
0
Jamie Arnold
Career
Per 9 Innings
0
0
Roy Mahaffey
Career
Per 9 Innings
0
Jamie Arnold
Career
Per 9 Innings
0
0
Roy Mahaffey
Career
Per 9 Innings
0
Jamie Arnold
Career
Per 9 Innings
0
0
Roy Mahaffey
Career
Per 9 Innings
0

Hitting Stats for Jamie Arnold and Roy Mahaffey

Jamie Arnold
Career
Per 600 PA
2
2
Roy Mahaffey
Careerverified
Per 600 PAverified
9
9
Jamie Arnold
Career
Per 600 PAverified
50
1428.57
Roy Mahaffey
Careerverified
Per 600 PA
224
321.53
Jamie Arnold
Career
Per 600 PA
21
600
Roy Mahaffey
Careerverified
Per 600 PA
418
600
Jamie Arnold
Career
Per 600 PA
19
542.86
Roy Mahaffey
Careerverified
Per 600 PAverified
396
568.42
Jamie Arnold
Career
Per 600 PA
0.158
0.158
Roy Mahaffey
Careerverified
Per 600 PAverified
0.184
0.184
Jamie Arnold
Career
Per 600 PA
0.452
0.452
Roy Mahaffey
Careerverified
Per 600 PAverified
0.474
0.474
Jamie Arnold
Career
Per 600 PA
3
85.71
Roy Mahaffey
Careerverified
Per 600 PAverified
73
104.78
Jamie Arnold
Career
Per 600 PA
2
57.14
Roy Mahaffey
Careerverified
Per 600 PAverified
59
84.69
Jamie Arnold
Career
Per 600 PAverified
1
28.57
Roy Mahaffey
Careerverified
Per 600 PA
9
12.92
Jamie Arnold
Career
Per 600 PA
0
0
Roy Mahaffey
Careerverified
Per 600 PAverified
1
1.44
Jamie Arnold
Career
Per 600 PA
0
0
Roy Mahaffey
Careerverified
Per 600 PAverified
4
5.74
Jamie Arnold
Career
Per 600 PAverified
1
28.57
Roy Mahaffey
Careerverified
Per 600 PA
14
20.1
Jamie Arnold
Careerverified
Per 600 PAverified
0.333
0.333
Roy Mahaffey
Career
Per 600 PA
0.192
0.192
Jamie Arnold
Career
Per 600 PA
0
0
Roy Mahaffey
Careerverified
Per 600 PAverified
0.01
0.01
Jamie Arnold
Career
Per 600 PA
0
0
Roy Mahaffey
Careerverified
Per 600 PAverified
0.055
0.055
Jamie Arnold
Career
Per 600 PA
0.85
24.16
Roy Mahaffey
Careerverified
Per 600 PAverified
21.77
31.25
Jamie Arnold
Career
Per 600 PA
4
114.29
Roy Mahaffey
Careerverified
Per 600 PAverified
96
137.8
Jamie Arnold
Career
Per 600 PA
4
114.29
Roy Mahaffey
Careerverified
Per 600 PAverified
87
124.88
Jamie Arnold
Career
Per 600 PA
0.2
0.2
Roy Mahaffey
Careerverified
Per 600 PAverified
0.212
0.212
Jamie Arnold
Career
Per 600 PA
0.211
0.211
Roy Mahaffey
Careerverified
Per 600 PAverified
0.242
0.242
Jamie Arnold
Career
Per 600 PA
0.411
0.411
Roy Mahaffey
Careerverified
Per 600 PAverified
0.455
0.455
Jamie Arnold
Career
Per 600 PA
0.053
0.053
Roy Mahaffey
Careerverified
Per 600 PAverified
0.058
0.058
Jamie Arnold
Career
Per 600 PA
0.143
0.143
Roy Mahaffey
Careerverified
Per 600 PAverified
0.156
0.156
Jamie Arnold
Career
Per 600 PA
0.313
0.313
Roy Mahaffey
Careerverified
Per 600 PAverified
0.341
0.341
Jamie Arnold
Career
Per 600 PA
0.231
0.231
Roy Mahaffey
Careerverified
Per 600 PAverified
0.273
0.273
Jamie Arnold
Career
Per 600 PA
1
28.57
Roy Mahaffey
Careerverified
Per 600 PAverified
28
40.19
Jamie Arnold
Career
Per 600 PA
1
28.57
Roy Mahaffey
Careerverified
Per 600 PAverified
33
47.37
Jamie Arnold
Career
Per 600 PA
2
57.14
Roy Mahaffey
Careerverified
Per 600 PAverified
57
81.82
Jamie Arnold
Career
Per 600 PA
0.6
17.01
Roy Mahaffey
Careerverified
Per 600 PAverified
18.88
27.11
Jamie Arnold
Careerverified
Per 600 PAverified
1
28.57
Roy Mahaffey
Career
Per 600 PA
0
0
Jamie Arnold
Career
Per 600 PA
0
0
Roy Mahaffey
Careerverified
Per 600 PAverified
14
20.1
Jamie Arnold
Career
Per 600 PA
0
0
Roy Mahaffey
Career
Per 600 PA
0
0
Jamie Arnold
Careerverified
Per 600 PAverified
6
171.43
Roy Mahaffey
Career
Per 600 PA
139
199.52
Jamie Arnold
Careerverified
Per 600 PAverified
3.5
3.5
Roy Mahaffey
Career
Per 600 PA
3.01
3.01
Jamie Arnold
Career
Per 600 PA
0
0
Roy Mahaffey
Careerverified
Per 600 PAverified
0.1
0.1
Jamie Arnold
Career
Per 600 PAverified
1
28.57
Roy Mahaffey
Careerverified
Per 600 PA
8
11.48
Jamie Arnold
Career
Per 600 PA
0
0
Roy Mahaffey
Career
Per 600 PA
0
0
Jamie Arnold
Career
Per 600 PA
0
0
Roy Mahaffey
Career
Per 600 PA
0
0
Jamie Arnold
Career
Per 600 PA
0
0
Roy Mahaffey
Career
Per 600 PA
0
0
Jamie Arnold
Career
Per 600 PA
0
0
Roy Mahaffey
Career
Per 600 PA
0
0
Jamie Arnold
Career
Per 600 PA
0
0
Roy Mahaffey
Career
Per 600 PA
0
0
Jamie Arnold
Career
Per 600 PA
Roy Mahaffey
Career
Per 600 PA