Jamie Arnold vs. Rich Robertson — Career Comparison

Jamie Arnold
Gen XMichiganThrows RightBats RightNorth AmericaLos Angeles DodgersNational LeagueRelief Pitcher
Rich Robertson
Silent GenerationCaliforniaThrows RightBats RightNorth AmericaSan Francisco GiantsNational LeagueStarting Pitcher

Rich Robertson 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. Rich Robertson posted stronger surface numbers — ERA 4.94 and WHIP 1.631 compared to 5.73 and 1.652 for Jamie Arnold. By the career numbers, Rich Robertson had the better of this cross-role comparison — though era context would sharpen the verdict.

Pitching Stats for Jamie Arnold and Rich Robertson

Jamie Arnold
Career
Per 9 Innings
2
2
Rich Robertson
Careerverified
Per 9 Inningsverified
6
6
Jamie Arnold
Career
Per 9 Inningsverified
50
4.15
Rich Robertson
Careerverified
Per 9 Innings
86
2.56
Jamie Arnold
Career
Per 9 Innings
7
0.58
Rich Robertson
Careerverified
Per 9 Inningsverified
40
1.19
Jamie Arnold
Career
Per 9 Innings
2
0.17
Rich Robertson
Careerverified
Per 9 Inningsverified
13
0.39
Jamie Arnold
Careerverified
Per 9 Innings
7
0.58
Rich Robertson
Career
Per 9 Inningsverified
14
0.42
Jamie Arnold
Career
Per 9 Innings
22.22
22.22
Rich Robertson
Careerverified
Per 9 Inningsverified
48.15
48.15
Jamie Arnold
Career
Per 9 Innings
14
14
Rich Robertson
Careerverified
Per 9 Inningsverified
46.51
46.51
Jamie Arnold
Career
Per 9 Innings
0
0
Rich Robertson
Careerverified
Per 9 Inningsverified
8
0.24
Jamie Arnold
Career
Per 9 Innings
0
0
Rich Robertson
Careerverified
Per 9 Inningsverified
1
0.03
Jamie Arnold
Career
Per 9 Inningsverified
2
0.17
Rich Robertson
Career
Per 9 Innings
2
0.06
Jamie Arnold
Careerverified
Per 9 Innings
69
5.73
Rich Robertson
Career
Per 9 Inningsverified
166
4.94
Jamie Arnold
Career
Per 9 Innings
5.73
5.73
Rich Robertson
Careerverified
Per 9 Inningsverified
4.94
4.94
Jamie Arnold
Career
Per 9 Innings
5.32
5.32
Rich Robertson
Careerverified
Per 9 Inningsverified
5.06
5.06
Jamie Arnold
Career
Per 9 Innings
4.95
4.95
Rich Robertson
Careerverified
Per 9 Inningsverified
4.67
4.67
Jamie Arnold
Career
Per 9 Innings
0.285
0.285
Rich Robertson
Careerverified
Per 9 Inningsverified
0.277
0.277
Jamie Arnold
Career
Per 9 Innings
325
27
Rich Robertson
Careerverified
Per 9 Innings
907
27
Jamie Arnold
Career
Per 9 Innings
108.1
9
Rich Robertson
Careerverified
Per 9 Innings
302.1
9
Jamie Arnold
Careerverified
Per 9 Inningsverified
119
9.89
Rich Robertson
Career
Per 9 Innings
333
9.91
Jamie Arnold
Careerverified
Per 9 Inningsverified
9.89
9.89
Rich Robertson
Career
Per 9 Innings
9.91
9.91
Jamie Arnold
Careerverified
Per 9 Inningsverified
7
0.58
Rich Robertson
Career
Per 9 Innings
31
0.92
Jamie Arnold
Careerverified
Per 9 Inningsverified
0.58
0.58
Rich Robertson
Career
Per 9 Innings
0.92
0.92
Jamie Arnold
Careerverified
Per 9 Inningsverified
0.14
0.14
Rich Robertson
Career
Per 9 Innings
0.36
0.36
Jamie Arnold
Careerverified
Per 9 Innings
58
4.82
Rich Robertson
Career
Per 9 Inningsverified
153
4.55
Jamie Arnold
Careerverified
Per 9 Inningsverified
2
0.17
Rich Robertson
Career
Per 9 Innings
7
0.21
Jamie Arnold
Career
Per 9 Innings
4.82
4.82
Rich Robertson
Careerverified
Per 9 Inningsverified
4.55
4.55
Jamie Arnold
Career
Per 9 Innings
42
3.49
Rich Robertson
Careerverified
Per 9 Inningsverified
184
5.48
Jamie Arnold
Career
Per 9 Innings
3.49
3.49
Rich Robertson
Careerverified
Per 9 Inningsverified
5.48
5.48
Jamie Arnold
Career
Per 9 Innings
0.84
0.84
Rich Robertson
Careerverified
Per 9 Inningsverified
2.14
2.14
Jamie Arnold
Career
Per 9 Innings
0.923
0.923
Rich Robertson
Careerverified
Per 9 Inningsverified
1.115
1.115
Jamie Arnold
Careerverified
Per 9 Inningsverified
5
0.42
Rich Robertson
Career
Per 9 Innings
26
0.77
Jamie Arnold
Career
Per 9 Innings
10
0.83
Rich Robertson
Careerverified
Per 9 Inningsverified
4
0.12
Jamie Arnold
Careerverified
Per 9 Inningsverified
0
0
Rich Robertson
Career
Per 9 Innings
2
0.06
Jamie Arnold
Career
Per 9 Innings
494
41.04
Rich Robertson
Careerverified
Per 9 Inningsverified
1379
41.05
Jamie Arnold
Careerverified
Per 9 Inningsverified
23
1.91
Rich Robertson
Career
Per 9 Innings
17
0.51
Jamie Arnold
Careerverified
Per 9 Innings
81
6.73
Rich Robertson
Career
Per 9 Inningsverified
195
5.8
Jamie Arnold
Career
Per 9 Innings
6.73
6.73
Rich Robertson
Careerverified
Per 9 Inningsverified
5.8
5.8
Jamie Arnold
Careerverified
Per 9 Innings
5
0.42
Rich Robertson
Career
Per 9 Inningsverified
7
0.21
Jamie Arnold
Careerverified
Per 9 Innings
4
0.33
Rich Robertson
Career
Per 9 Innings
11
0.33
Jamie Arnold
Careerverified
Per 9 Inningsverified
21
1.74
Rich Robertson
Career
Per 9 Innings
0
0
Jamie Arnold
Career
Per 9 Innings
1.634
1.634
Rich Robertson
Careerverified
Per 9 Inningsverified
1.608
1.608
Jamie Arnold
Career
Per 9 Innings
417
34.64
Rich Robertson
Careerverified
Per 9 Inningsverified
1204
35.84
Jamie Arnold
Careerverified
Per 9 Inningsverified
1.62
1.62
Rich Robertson
Career
Per 9 Innings
2.27
2.27
Jamie Arnold
Careerverified
Per 9 Inningsverified
0.304
0.304
Rich Robertson
Career
Per 9 Innings
0.305
0.305
Jamie Arnold
Career
Per 9 Innings
41.04
41.04
Rich Robertson
Careerverified
Per 9 Inningsverified
41.05
41.05

Fielding Stats for Jamie Arnold and Rich Robertson

Jamie Arnold
Career
Per 9 Innings
2
2
Rich Robertson
Careerverified
Per 9 Inningsverified
6
6
Jamie Arnold
Career
Per 9 Inningsverified
50
4.15
Rich Robertson
Careerverified
Per 9 Innings
86
2.56
Jamie Arnold
Career
Per 9 Innings
7
0.58
Rich Robertson
Careerverified
Per 9 Inningsverified
40
1.19
Jamie Arnold
Career
Per 9 Innings
325
27
Rich Robertson
Careerverified
Per 9 Innings
908
27
Jamie Arnold
Career
Per 9 Innings
108.1
9
Rich Robertson
Careerverified
Per 9 Innings
302.2
9
Jamie Arnold
Career
Per 9 Innings
5
0.42
Rich Robertson
Careerverified
Per 9 Inningsverified
20
0.59
Jamie Arnold
Career
Per 9 Inningsverified
22
1.83
Rich Robertson
Careerverified
Per 9 Innings
41
1.22
Jamie Arnold
Careerverified
Per 9 Innings
2
0.17
Rich Robertson
Career
Per 9 Inningsverified
5
0.15
Jamie Arnold
Career
Per 9 Inningsverified
29
2.41
Rich Robertson
Careerverified
Per 9 Innings
66
1.96
Jamie Arnold
Career
Per 9 Inningsverified
27
2.24
Rich Robertson
Careerverified
Per 9 Innings
61
1.81
Jamie Arnold
Careerverified
Per 9 Inningsverified
93.1
93.1
Rich Robertson
Career
Per 9 Innings
92.42
92.42
Jamie Arnold
Career
Per 9 Innings
0.54
0.54
Rich Robertson
Careerverified
Per 9 Inningsverified
0.709
0.709
Jamie Arnold
Career
Per 9 Innings
14
14
Rich Robertson
Careerverified
Per 9 Inningsverified
46.51
46.51
Jamie Arnold
Careerverified
Per 9 Inningsverified
5
0.42
Rich Robertson
Career
Per 9 Innings
4
0.12
Jamie Arnold
Career
Per 9 Innings
0
0
Rich Robertson
Career
Per 9 Innings
0
0
Jamie Arnold
Career
Per 9 Innings
0
0
Rich Robertson
Career
Per 9 Innings
0
0
Jamie Arnold
Career
Per 9 Innings
0
0
Rich Robertson
Career
Per 9 Innings
0
0
Jamie Arnold
Career
Per 9 Innings
0
0
Rich Robertson
Career
Per 9 Innings
0
0

Hitting Stats for Jamie Arnold and Rich Robertson

Jamie Arnold
Career
Per 600 PA
2
2
Rich Robertson
Careerverified
Per 600 PAverified
6
6
Jamie Arnold
Career
Per 600 PAverified
50
1428.57
Rich Robertson
Careerverified
Per 600 PA
86
531.96
Jamie Arnold
Career
Per 600 PA
21
600
Rich Robertson
Careerverified
Per 600 PA
97
600
Jamie Arnold
Career
Per 600 PAverified
19
542.86
Rich Robertson
Careerverified
Per 600 PA
86
531.96
Jamie Arnold
Careerverified
Per 600 PAverified
0.158
0.158
Rich Robertson
Career
Per 600 PA
0.093
0.093
Jamie Arnold
Careerverified
Per 600 PAverified
0.452
0.452
Rich Robertson
Career
Per 600 PA
0.371
0.371
Jamie Arnold
Career
Per 600 PAverified
3
85.71
Rich Robertson
Careerverified
Per 600 PA
8
49.48
Jamie Arnold
Career
Per 600 PAverified
2
57.14
Rich Robertson
Careerverified
Per 600 PA
4
24.74
Jamie Arnold
Career
Per 600 PAverified
1
28.57
Rich Robertson
Careerverified
Per 600 PA
2
12.37
Jamie Arnold
Career
Per 600 PA
0
0
Rich Robertson
Career
Per 600 PA
0
0
Jamie Arnold
Career
Per 600 PA
0
0
Rich Robertson
Careerverified
Per 600 PAverified
2
12.37
Jamie Arnold
Career
Per 600 PAverified
1
28.57
Rich Robertson
Careerverified
Per 600 PA
4
24.74
Jamie Arnold
Career
Per 600 PA
0.333
0.333
Rich Robertson
Careerverified
Per 600 PAverified
0.5
0.5
Jamie Arnold
Career
Per 600 PA
0
0
Rich Robertson
Careerverified
Per 600 PAverified
0.023
0.023
Jamie Arnold
Career
Per 600 PA
0
0
Rich Robertson
Careerverified
Per 600 PAverified
0.25
0.25
Jamie Arnold
Career
Per 600 PAverified
0.85
24.16
Rich Robertson
Careerverified
Per 600 PA
3.05
18.89
Jamie Arnold
Career
Per 600 PAverified
4
114.29
Rich Robertson
Careerverified
Per 600 PA
16
98.97
Jamie Arnold
Career
Per 600 PAverified
4
114.29
Rich Robertson
Careerverified
Per 600 PA
10
61.86
Jamie Arnold
Careerverified
Per 600 PAverified
0.2
0.2
Rich Robertson
Career
Per 600 PA
0.114
0.114
Jamie Arnold
Careerverified
Per 600 PAverified
0.211
0.211
Rich Robertson
Career
Per 600 PA
0.186
0.186
Jamie Arnold
Careerverified
Per 600 PAverified
0.411
0.411
Rich Robertson
Career
Per 600 PA
0.3
0.3
Jamie Arnold
Career
Per 600 PA
0.053
0.053
Rich Robertson
Careerverified
Per 600 PAverified
0.093
0.093
Jamie Arnold
Careerverified
Per 600 PAverified
0.143
0.143
Rich Robertson
Career
Per 600 PA
0.098
0.098
Jamie Arnold
Careerverified
Per 600 PAverified
0.313
0.313
Rich Robertson
Career
Per 600 PA
0.228
0.228
Jamie Arnold
Careerverified
Per 600 PAverified
0.231
0.231
Rich Robertson
Career
Per 600 PA
0.182
0.182
Jamie Arnold
Career
Per 600 PA
1
28.57
Rich Robertson
Careerverified
Per 600 PAverified
5
30.93
Jamie Arnold
Career
Per 600 PAverified
1
28.57
Rich Robertson
Careerverified
Per 600 PA
4
24.74
Jamie Arnold
Career
Per 600 PAverified
2
57.14
Rich Robertson
Careerverified
Per 600 PA
7
43.3
Jamie Arnold
Careerverified
Per 600 PAverified
0.6
17.01
Rich Robertson
Career
Per 600 PA
-1.49
-9.22
Jamie Arnold
Careerverified
Per 600 PAverified
1
28.57
Rich Robertson
Career
Per 600 PA
0
0
Jamie Arnold
Career
Per 600 PA
0
0
Rich Robertson
Careerverified
Per 600 PAverified
2
12.37
Jamie Arnold
Career
Per 600 PA
0
0
Rich Robertson
Career
Per 600 PA
0
0
Jamie Arnold
Careerverified
Per 600 PAverified
6
171.43
Rich Robertson
Career
Per 600 PA
51
315.46
Jamie Arnold
Careerverified
Per 600 PAverified
3.5
3.5
Rich Robertson
Career
Per 600 PA
1.9
1.9
Jamie Arnold
Career
Per 600 PA
0
0
Rich Robertson
Careerverified
Per 600 PAverified
0.04
0.04
Jamie Arnold
Career
Per 600 PA
1
28.57
Rich Robertson
Careerverified
Per 600 PAverified
9
55.67
Jamie Arnold
Career
Per 600 PA
0
0
Rich Robertson
Career
Per 600 PA
0
0
Jamie Arnold
Careerverified
Per 600 PAverified
0
0
Rich Robertson
Career
Per 600 PA
1
6.19
Jamie Arnold
Career
Per 600 PA
0
0
Rich Robertson
Career
Per 600 PA
0
0
Jamie Arnold
Career
Per 600 PA
0
0
Rich Robertson
Career
Per 600 PA
0
0
Jamie Arnold
Career
Per 600 PA
0
0
Rich Robertson
Career
Per 600 PA
0
0
Jamie Arnold
Career
Per 600 PA
Rich Robertson
Career
Per 600 PA