Doc Ayers vs. Dan O'Brien — Career Comparison

Doc Ayers
Lost GenerationVirginiaThrows RightBats RightNorth AmericaWashington SenatorsAmerican LeagueStarting Pitcher
Dan O'Brien
Baby BoomersFloridaThrows RightBats RightNorth AmericaSt. Louis CardinalsNational LeagueRelief Pitcher

Doc Ayers built a career as a starting pitcher and Dan O'Brien as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Doc Ayers posted stronger surface numbers — ERA 2.84 and WHIP 1.217 compared to 5.9 and 1.931 for Dan O'Brien. By the career numbers, Doc Ayers had the better of this cross-role comparison — though era context would sharpen the verdict.

Pitching Stats for Doc Ayers and Dan O'Brien

Doc Ayers
Careerverified
Per 9 Inningsverified
9
9
Dan O'Brien
Career
Per 9 Innings
2
2
Doc Ayers
Careerverified
Per 9 Innings
299
1.88
Dan O'Brien
Career
Per 9 Inningsverified
13
4.03
Doc Ayers
Careerverified
Per 9 Inningsverified
140
0.88
Dan O'Brien
Career
Per 9 Innings
2
0.62
Doc Ayers
Careerverified
Per 9 Inningsverified
65
0.41
Dan O'Brien
Career
Per 9 Innings
1
0.31
Doc Ayers
Career
Per 9 Inningsverified
79
0.5
Dan O'Brien
Careerverified
Per 9 Innings
3
0.93
Doc Ayers
Careerverified
Per 9 Inningsverified
45.14
45.14
Dan O'Brien
Career
Per 9 Innings
25
25
Doc Ayers
Careerverified
Per 9 Inningsverified
46.82
46.82
Dan O'Brien
Career
Per 9 Innings
15.38
15.38
Doc Ayers
Careerverified
Per 9 Inningsverified
58
0.37
Dan O'Brien
Career
Per 9 Innings
0
0
Doc Ayers
Careerverified
Per 9 Inningsverified
17
0.11
Dan O'Brien
Career
Per 9 Innings
0
0
Doc Ayers
Careerverified
Per 9 Inningsverified
15
0.09
Dan O'Brien
Career
Per 9 Innings
0
0
Doc Ayers
Career
Per 9 Inningsverified
451
2.84
Dan O'Brien
Careerverified
Per 9 Innings
19
5.9
Doc Ayers
Careerverified
Per 9 Inningsverified
2.84
2.84
Dan O'Brien
Career
Per 9 Innings
5.9
5.9
Doc Ayers
Careerverified
Per 9 Inningsverified
3.03
3.03
Dan O'Brien
Career
Per 9 Innings
6.42
6.42
Doc Ayers
Careerverified
Per 9 Inningsverified
3.25
3.25
Dan O'Brien
Career
Per 9 Innings
3.62
3.62
Doc Ayers
Careerverified
Per 9 Inningsverified
0.258
0.258
Dan O'Brien
Career
Per 9 Innings
0.35
0.35
Doc Ayers
Careerverified
Per 9 Innings
4286
27
Dan O'Brien
Career
Per 9 Innings
87
27
Doc Ayers
Careerverified
Per 9 Innings
1428.2
9
Dan O'Brien
Career
Per 9 Innings
29
9
Doc Ayers
Career
Per 9 Inningsverified
1357
8.55
Dan O'Brien
Careerverified
Per 9 Innings
43
13.34
Doc Ayers
Careerverified
Per 9 Inningsverified
8.55
8.55
Dan O'Brien
Career
Per 9 Innings
13.34
13.34
Doc Ayers
Career
Per 9 Inningsverified
23
0.14
Dan O'Brien
Careerverified
Per 9 Innings
1
0.31
Doc Ayers
Careerverified
Per 9 Inningsverified
0.14
0.14
Dan O'Brien
Career
Per 9 Innings
0.31
0.31
Doc Ayers
Career
Per 9 Innings
0.08
0.08
Dan O'Brien
Career
Per 9 Innings
0.08
0.08
Doc Ayers
Career
Per 9 Inningsverified
382
2.41
Dan O'Brien
Careerverified
Per 9 Innings
11
3.41
Doc Ayers
Careerverified
Per 9 Inningsverified
0
0
Dan O'Brien
Career
Per 9 Innings
2
0.62
Doc Ayers
Careerverified
Per 9 Inningsverified
2.41
2.41
Dan O'Brien
Career
Per 9 Innings
3.41
3.41
Doc Ayers
Careerverified
Per 9 Innings
622
3.92
Dan O'Brien
Career
Per 9 Inningsverified
17
5.28
Doc Ayers
Career
Per 9 Innings
3.92
3.92
Dan O'Brien
Careerverified
Per 9 Inningsverified
5.28
5.28
Doc Ayers
Careerverified
Per 9 Inningsverified
2.08
2.08
Dan O'Brien
Career
Per 9 Innings
1.31
1.31
Doc Ayers
Career
Per 9 Innings
0.703
0.703
Dan O'Brien
Careerverified
Per 9 Inningsverified
0.966
0.966
Doc Ayers
Career
Per 9 Innings
14
0.09
Dan O'Brien
Careerverified
Per 9 Inningsverified
0
0
Doc Ayers
Career
Per 9 Inningsverified
50
0.31
Dan O'Brien
Careerverified
Per 9 Innings
2
0.62
Doc Ayers
Career
Per 9 Inningsverified
5
0.03
Dan O'Brien
Careerverified
Per 9 Innings
1
0.31
Doc Ayers
Careerverified
Per 9 Innings
5702
35.92
Dan O'Brien
Career
Per 9 Inningsverified
141
43.76
Doc Ayers
Careerverified
Per 9 Innings
109
0.69
Dan O'Brien
Career
Per 9 Inningsverified
5
1.55
Doc Ayers
Career
Per 9 Inningsverified
612
3.86
Dan O'Brien
Careerverified
Per 9 Innings
22
6.83
Doc Ayers
Careerverified
Per 9 Inningsverified
3.86
3.86
Dan O'Brien
Career
Per 9 Innings
6.83
6.83
Doc Ayers
Careerverified
Per 9 Inningsverified
0
0
Dan O'Brien
Career
Per 9 Innings
2
0.62
Doc Ayers
Careerverified
Per 9 Inningsverified
0
0
Dan O'Brien
Career
Per 9 Innings
3
0.93
Doc Ayers
Career
Per 9 Innings
0
0
Dan O'Brien
Career
Per 9 Innings
0
0
Doc Ayers
Careerverified
Per 9 Inningsverified
1.217
1.217
Dan O'Brien
Career
Per 9 Innings
1.862
1.862
Doc Ayers
Careerverified
Per 9 Innings
5270
33.2
Dan O'Brien
Career
Per 9 Inningsverified
123
38.17
Doc Ayers
Career
Per 9 Innings
2.05
2.05
Dan O'Brien
Careerverified
Per 9 Inningsverified
1.69
1.69
Doc Ayers
Careerverified
Per 9 Inningsverified
0.288
0.288
Dan O'Brien
Career
Per 9 Innings
0.4
0.4
Doc Ayers
Career
Per 9 Innings
35.92
35.92
Dan O'Brien
Careerverified
Per 9 Inningsverified
43.76
43.76

Fielding Stats for Doc Ayers and Dan O'Brien

Doc Ayers
Careerverified
Per 9 Innings
9
Dan O'Brien
Career
Per 9 Inningsverified
2
2
Doc Ayers
Careerverified
Per 9 Innings
299
Dan O'Brien
Career
Per 9 Inningsverified
13
4.03
Doc Ayers
Career
Per 9 Innings
0
Dan O'Brien
Careerverified
Per 9 Inningsverified
2
0.62
Doc Ayers
Career
Per 9 Innings
0
Dan O'Brien
Careerverified
Per 9 Inningsverified
87
27
Doc Ayers
Career
Per 9 Innings
0
Dan O'Brien
Careerverified
Per 9 Inningsverified
29
9
Doc Ayers
Careerverified
Per 9 Innings
64
Dan O'Brien
Career
Per 9 Innings
0
0
Doc Ayers
Careerverified
Per 9 Innings
354
Dan O'Brien
Career
Per 9 Inningsverified
2
0.62
Doc Ayers
Career
Per 9 Innings
39
Dan O'Brien
Careerverified
Per 9 Innings
0
0
Doc Ayers
Careerverified
Per 9 Innings
457
Dan O'Brien
Career
Per 9 Inningsverified
2
0.62
Doc Ayers
Careerverified
Per 9 Innings
418
Dan O'Brien
Career
Per 9 Inningsverified
2
0.62
Doc Ayers
Career
Per 9 Innings
91.47
Dan O'Brien
Careerverified
Per 9 Inningsverified
100
100
Doc Ayers
Careerverified
Per 9 Innings
1.398
Dan O'Brien
Career
Per 9 Inningsverified
0.154
0.154
Doc Ayers
Career
Per 9 Innings
0
Dan O'Brien
Careerverified
Per 9 Inningsverified
15.38
15.38
Doc Ayers
Careerverified
Per 9 Innings
13
Dan O'Brien
Career
Per 9 Innings
0
0
Doc Ayers
Career
Per 9 Innings
0
Dan O'Brien
Career
Per 9 Innings
0
0
Doc Ayers
Career
Per 9 Innings
0
Dan O'Brien
Career
Per 9 Innings
0
0
Doc Ayers
Career
Per 9 Innings
0
Dan O'Brien
Career
Per 9 Innings
0
0
Doc Ayers
Career
Per 9 Innings
0
Dan O'Brien
Career
Per 9 Innings
0
0

Hitting Stats for Doc Ayers and Dan O'Brien

Doc Ayers
Careerverified
Per 600 PAverified
9
9
Dan O'Brien
Career
Per 600 PA
2
2
Doc Ayers
Careerverified
Per 600 PA
299
397.78
Dan O'Brien
Career
Per 600 PAverified
13
1300
Doc Ayers
Careerverified
Per 600 PA
451
600
Dan O'Brien
Career
Per 600 PA
6
600
Doc Ayers
Careerverified
Per 600 PAverified
420
558.76
Dan O'Brien
Career
Per 600 PA
5
500
Doc Ayers
Careerverified
Per 600 PAverified
0.171
0.171
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Careerverified
Per 600 PAverified
0.433
0.433
Dan O'Brien
Career
Per 600 PA
0.167
0.167
Doc Ayers
Careerverified
Per 600 PAverified
72
95.79
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Careerverified
Per 600 PAverified
60
79.82
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Careerverified
Per 600 PAverified
10
13.3
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Careerverified
Per 600 PAverified
2
2.66
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Career
Per 600 PA
0
0
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Careerverified
Per 600 PAverified
12
15.96
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Careerverified
Per 600 PAverified
0.167
0.167
Dan O'Brien
Career
Per 600 PA
Doc Ayers
Career
Per 600 PA
0
0
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Career
Per 600 PA
0
0
Dan O'Brien
Career
Per 600 PA
Doc Ayers
Careerverified
Per 600 PAverified
16.49
21.93
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Careerverified
Per 600 PAverified
86
114.41
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Careerverified
Per 600 PAverified
86
114.41
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Careerverified
Per 600 PAverified
0.198
0.198
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Careerverified
Per 600 PAverified
0.205
0.205
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Careerverified
Per 600 PAverified
0.403
0.403
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Careerverified
Per 600 PAverified
0.033
0.033
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Careerverified
Per 600 PAverified
0.14
0.14
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Careerverified
Per 600 PAverified
0.287
0.287
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Careerverified
Per 600 PAverified
0.207
0.207
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Careerverified
Per 600 PAverified
20
26.61
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Careerverified
Per 600 PAverified
23
30.6
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Careerverified
Per 600 PAverified
43
57.21
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Careerverified
Per 600 PAverified
13.21
17.57
Dan O'Brien
Career
Per 600 PA
-0.47
-46.88
Doc Ayers
Careerverified
Per 600 PAverified
1
1.33
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Careerverified
Per 600 PAverified
13
17.29
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Career
Per 600 PA
0
0
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Career
Per 600 PA
72
95.79
Dan O'Brien
Careerverified
Per 600 PAverified
0
0
Doc Ayers
Careerverified
Per 600 PAverified
6.26
6.26
Dan O'Brien
Career
Per 600 PA
Doc Ayers
Careerverified
Per 600 PAverified
0.18
0.18
Dan O'Brien
Career
Per 600 PA
Doc Ayers
Careerverified
Per 600 PA
17
22.62
Dan O'Brien
Career
Per 600 PAverified
1
100
Doc Ayers
Career
Per 600 PA
0
0
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Career
Per 600 PA
0
0
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Careerverified
Per 600 PAverified
1
1.33
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Careerverified
Per 600 PAverified
4
5.32
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Careerverified
Per 600 PAverified
5
6.65
Dan O'Brien
Career
Per 600 PA
0
0
Doc Ayers
Careerverified
Per 600 PAverified
20
20
Dan O'Brien
Career
Per 600 PA