Brian O'Connor vs. Ed Siever — Career Comparison

Brian O'Connor
Gen XOhioThrows LeftBats LeftNorth AmericaPittsburgh PiratesNational LeagueRelief Pitcher
Ed Siever
Pre-GenerationalKansasThrows LeftBats LeftNorth AmericaDetroit TigersAmerican LeagueStarting Pitcher

Ed Siever built a career as a starting pitcher and Brian O'Connor as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Ed Siever posted stronger surface numbers — ERA 2.6 and WHIP 1.235 compared to 5.11 and 1.865 for Brian O'Connor. By the career numbers, Ed Siever had the better of this cross-role comparison — though era context would sharpen the verdict.

Pitching Stats for Brian O'Connor and Ed Siever

Brian O'Connor
Career
Per 9 Innings
1
1
Ed Siever
Careerverified
Per 9 Inningsverified
7
7
Brian O'Connor
Career
Per 9 Inningsverified
6
4.38
Ed Siever
Careerverified
Per 9 Innings
203
1.21
Brian O'Connor
Career
Per 9 Innings
1
0.73
Ed Siever
Careerverified
Per 9 Inningsverified
174
1.04
Brian O'Connor
Career
Per 9 Innings
0
0
Ed Siever
Careerverified
Per 9 Inningsverified
83
0.5
Brian O'Connor
Careerverified
Per 9 Inningsverified
0
0
Ed Siever
Career
Per 9 Innings
82
0.49
Brian O'Connor
Career
Per 9 Innings
Ed Siever
Careerverified
Per 9 Inningsverified
50.3
50.3
Brian O'Connor
Career
Per 9 Innings
16.67
16.67
Ed Siever
Careerverified
Per 9 Inningsverified
85.71
85.71
Brian O'Connor
Career
Per 9 Innings
0
0
Ed Siever
Careerverified
Per 9 Inningsverified
136
0.81
Brian O'Connor
Career
Per 9 Innings
0
0
Ed Siever
Careerverified
Per 9 Inningsverified
14
0.08
Brian O'Connor
Career
Per 9 Innings
0
0
Ed Siever
Careerverified
Per 9 Inningsverified
2
0.01
Brian O'Connor
Careerverified
Per 9 Innings
7
5.11
Ed Siever
Career
Per 9 Inningsverified
435
2.6
Brian O'Connor
Career
Per 9 Innings
5.11
5.11
Ed Siever
Careerverified
Per 9 Inningsverified
2.6
2.6
Brian O'Connor
Career
Per 9 Innings
6.5
6.5
Ed Siever
Careerverified
Per 9 Inningsverified
3.09
3.09
Brian O'Connor
Career
Per 9 Innings
6.89
6.89
Ed Siever
Careerverified
Per 9 Inningsverified
3.28
3.28
Brian O'Connor
Careerverified
Per 9 Inningsverified
0.25
0.25
Ed Siever
Career
Per 9 Innings
0.266
0.266
Brian O'Connor
Career
Per 9 Innings
37
27
Ed Siever
Careerverified
Per 9 Innings
4521
27
Brian O'Connor
Career
Per 9 Innings
12.1
9
Ed Siever
Careerverified
Per 9 Innings
1507
9
Brian O'Connor
Careerverified
Per 9 Inningsverified
12
8.76
Ed Siever
Career
Per 9 Innings
1550
9.26
Brian O'Connor
Careerverified
Per 9 Inningsverified
8.76
8.76
Ed Siever
Career
Per 9 Innings
9.26
9.26
Brian O'Connor
Careerverified
Per 9 Innings
2
1.46
Ed Siever
Career
Per 9 Inningsverified
24
0.14
Brian O'Connor
Career
Per 9 Innings
1.46
1.46
Ed Siever
Careerverified
Per 9 Inningsverified
0.14
0.14
Brian O'Connor
Career
Per 9 Innings
0.33
0.33
Ed Siever
Careerverified
Per 9 Inningsverified
0.12
0.12
Brian O'Connor
Careerverified
Per 9 Innings
11
8.03
Ed Siever
Career
Per 9 Inningsverified
311
1.86
Brian O'Connor
Career
Per 9 Innings
0
0
Ed Siever
Career
Per 9 Innings
0
0
Brian O'Connor
Career
Per 9 Innings
8.03
8.03
Ed Siever
Careerverified
Per 9 Inningsverified
1.86
1.86
Brian O'Connor
Career
Per 9 Inningsverified
7
5.11
Ed Siever
Careerverified
Per 9 Innings
470
2.81
Brian O'Connor
Careerverified
Per 9 Inningsverified
5.11
5.11
Ed Siever
Career
Per 9 Innings
2.81
2.81
Brian O'Connor
Career
Per 9 Innings
1.17
1.17
Ed Siever
Careerverified
Per 9 Inningsverified
2.32
2.32
Brian O'Connor
Careerverified
Per 9 Inningsverified
1.46
1.46
Ed Siever
Career
Per 9 Innings
0.518
0.518
Brian O'Connor
Careerverified
Per 9 Innings
4
2.92
Ed Siever
Career
Per 9 Inningsverified
21
0.13
Brian O'Connor
Careerverified
Per 9 Innings
1
0.73
Ed Siever
Career
Per 9 Inningsverified
39
0.23
Brian O'Connor
Careerverified
Per 9 Inningsverified
0
0
Ed Siever
Career
Per 9 Innings
1
0.01
Brian O'Connor
Career
Per 9 Inningsverified
62
45.24
Ed Siever
Careerverified
Per 9 Innings
6170
36.85
Brian O'Connor
Career
Per 9 Inningsverified
2
1.46
Ed Siever
Careerverified
Per 9 Innings
28
0.17
Brian O'Connor
Careerverified
Per 9 Innings
11
8.03
Ed Siever
Career
Per 9 Inningsverified
674
4.03
Brian O'Connor
Career
Per 9 Innings
8.03
8.03
Ed Siever
Careerverified
Per 9 Inningsverified
4.03
4.03
Brian O'Connor
Career
Per 9 Innings
1
0.73
Ed Siever
Careerverified
Per 9 Inningsverified
0
0
Brian O'Connor
Career
Per 9 Innings
1
0.73
Ed Siever
Careerverified
Per 9 Inningsverified
0
0
Brian O'Connor
Career
Per 9 Innings
0
0
Ed Siever
Career
Per 9 Innings
0
0
Brian O'Connor
Career
Per 9 Innings
1.865
1.865
Ed Siever
Careerverified
Per 9 Inningsverified
1.235
1.235
Brian O'Connor
Career
Per 9 Inningsverified
48
35.03
Ed Siever
Careerverified
Per 9 Innings
5820
34.76
Brian O'Connor
Careerverified
Per 9 Inningsverified
1.83
1.83
Ed Siever
Career
Per 9 Innings
3.32
3.32
Brian O'Connor
Careerverified
Per 9 Inningsverified
0.256
0.256
Ed Siever
Career
Per 9 Innings
0.287
0.287
Brian O'Connor
Careerverified
Per 9 Inningsverified
45.24
45.24
Ed Siever
Career
Per 9 Innings
36.85
36.85

Fielding Stats for Brian O'Connor and Ed Siever

Brian O'Connor
Career
Per 9 Innings
1
1
Ed Siever
Careerverified
Per 9 Inningsverified
7
7
Brian O'Connor
Career
Per 9 Inningsverified
6
4.38
Ed Siever
Careerverified
Per 9 Innings
204
1.22
Brian O'Connor
Career
Per 9 Inningsverified
1
0.73
Ed Siever
Careerverified
Per 9 Innings
92
0.55
Brian O'Connor
Career
Per 9 Innings
37
27
Ed Siever
Careerverified
Per 9 Innings
4530
27
Brian O'Connor
Career
Per 9 Innings
12.1
9
Ed Siever
Careerverified
Per 9 Innings
1510
9
Brian O'Connor
Career
Per 9 Innings
0
0
Ed Siever
Careerverified
Per 9 Inningsverified
75
0.45
Brian O'Connor
Career
Per 9 Innings
0
0
Ed Siever
Careerverified
Per 9 Inningsverified
427
2.55
Brian O'Connor
Careerverified
Per 9 Inningsverified
0
0
Ed Siever
Career
Per 9 Innings
35
0.21
Brian O'Connor
Career
Per 9 Innings
0
0
Ed Siever
Careerverified
Per 9 Inningsverified
537
3.2
Brian O'Connor
Career
Per 9 Innings
0
0
Ed Siever
Careerverified
Per 9 Inningsverified
502
2.99
Brian O'Connor
Career
Per 9 Innings
Ed Siever
Careerverified
Per 9 Inningsverified
93.48
93.48
Brian O'Connor
Career
Per 9 Innings
0
0
Ed Siever
Careerverified
Per 9 Inningsverified
2.461
2.461
Brian O'Connor
Career
Per 9 Innings
16.67
16.67
Ed Siever
Careerverified
Per 9 Inningsverified
45.1
45.1
Brian O'Connor
Career
Per 9 Innings
0
0
Ed Siever
Careerverified
Per 9 Inningsverified
13
0.08
Brian O'Connor
Career
Per 9 Innings
0
0
Ed Siever
Career
Per 9 Innings
0
0
Brian O'Connor
Career
Per 9 Innings
0
0
Ed Siever
Career
Per 9 Innings
0
0
Brian O'Connor
Career
Per 9 Innings
0
0
Ed Siever
Career
Per 9 Innings
0
0
Brian O'Connor
Career
Per 9 Innings
0
0
Ed Siever
Career
Per 9 Innings
0
0

Hitting Stats for Brian O'Connor and Ed Siever

Brian O'Connor
Career
Per 600 PA
1
1
Ed Siever
Careerverified
Per 600 PAverified
7
7
Brian O'Connor
Career
Per 600 PAverified
6
1800
Ed Siever
Careerverified
Per 600 PA
204
215.49
Brian O'Connor
Career
Per 600 PA
2
600
Ed Siever
Careerverified
Per 600 PA
568
600
Brian O'Connor
Career
Per 600 PAverified
2
600
Ed Siever
Careerverified
Per 600 PA
526
555.63
Brian O'Connor
Careerverified
Per 600 PAverified
0.5
0.5
Ed Siever
Career
Per 600 PA
0.156
0.156
Brian O'Connor
Careerverified
Per 600 PAverified
1
1
Ed Siever
Career
Per 600 PA
0.398
0.398
Brian O'Connor
Career
Per 600 PAverified
1
300
Ed Siever
Careerverified
Per 600 PA
82
86.62
Brian O'Connor
Career
Per 600 PAverified
1
300
Ed Siever
Careerverified
Per 600 PA
74
78.17
Brian O'Connor
Career
Per 600 PA
0
0
Ed Siever
Careerverified
Per 600 PAverified
7
7.39
Brian O'Connor
Career
Per 600 PA
0
0
Ed Siever
Careerverified
Per 600 PAverified
1
1.06
Brian O'Connor
Career
Per 600 PA
0
0
Ed Siever
Career
Per 600 PA
0
0
Brian O'Connor
Career
Per 600 PA
0
0
Ed Siever
Careerverified
Per 600 PAverified
8
8.45
Brian O'Connor
Career
Per 600 PA
0
0
Ed Siever
Careerverified
Per 600 PAverified
0.098
0.098
Brian O'Connor
Career
Per 600 PA
0
0
Ed Siever
Career
Per 600 PA
0
0
Brian O'Connor
Career
Per 600 PA
0
0
Ed Siever
Career
Per 600 PA
0
0
Brian O'Connor
Career
Per 600 PAverified
0.47
140.43
Ed Siever
Careerverified
Per 600 PA
17.04
18
Brian O'Connor
Career
Per 600 PAverified
1
300
Ed Siever
Careerverified
Per 600 PA
91
96.13
Brian O'Connor
Career
Per 600 PAverified
1
300
Ed Siever
Careerverified
Per 600 PA
101
106.69
Brian O'Connor
Careerverified
Per 600 PAverified
0.5
0.5
Ed Siever
Career
Per 600 PA
0.185
0.185
Brian O'Connor
Careerverified
Per 600 PAverified
0.5
0.5
Ed Siever
Career
Per 600 PA
0.173
0.173
Brian O'Connor
Careerverified
Per 600 PAverified
1
1
Ed Siever
Career
Per 600 PA
0.358
0.358
Brian O'Connor
Career
Per 600 PA
0
0
Ed Siever
Careerverified
Per 600 PAverified
0.017
0.017
Brian O'Connor
Careerverified
Per 600 PAverified
0.35
0.35
Ed Siever
Career
Per 600 PA
0.127
0.127
Brian O'Connor
Careerverified
Per 600 PAverified
1
1
Ed Siever
Career
Per 600 PA
0.252
0.252
Brian O'Connor
Careerverified
Per 600 PAverified
1
1
Ed Siever
Career
Per 600 PA
0.207
0.207
Brian O'Connor
Career
Per 600 PA
0
0
Ed Siever
Careerverified
Per 600 PAverified
38
40.14
Brian O'Connor
Career
Per 600 PA
0
0
Ed Siever
Careerverified
Per 600 PAverified
23
24.3
Brian O'Connor
Career
Per 600 PA
0
0
Ed Siever
Careerverified
Per 600 PAverified
61
64.44
Brian O'Connor
Career
Per 600 PAverified
0.52
156.97
Ed Siever
Careerverified
Per 600 PA
11.24
11.87
Brian O'Connor
Career
Per 600 PA
0
0
Ed Siever
Careerverified
Per 600 PAverified
3
3.17
Brian O'Connor
Career
Per 600 PA
0
0
Ed Siever
Careerverified
Per 600 PAverified
16
16.9
Brian O'Connor
Career
Per 600 PA
0
0
Ed Siever
Career
Per 600 PA
0
0
Brian O'Connor
Careerverified
Per 600 PA
1
300
Ed Siever
Career
Per 600 PAverified
129
136.27
Brian O'Connor
Career
Per 600 PA
2
2
Ed Siever
Careerverified
Per 600 PAverified
4.4
4.4
Brian O'Connor
Career
Per 600 PA
0
0
Ed Siever
Careerverified
Per 600 PAverified
0.12
0.12
Brian O'Connor
Career
Per 600 PA
0
0
Ed Siever
Careerverified
Per 600 PAverified
23
24.3
Brian O'Connor
Career
Per 600 PA
0
0
Ed Siever
Career
Per 600 PA
0
0
Brian O'Connor
Career
Per 600 PA
0
0
Ed Siever
Career
Per 600 PA
0
0
Brian O'Connor
Career
Per 600 PA
0
0
Ed Siever
Careerverified
Per 600 PAverified
2
2.11
Brian O'Connor
Career
Per 600 PA
0
0
Ed Siever
Career
Per 600 PA
0
0
Brian O'Connor
Career
Per 600 PA
0
0
Ed Siever
Careerverified
Per 600 PAverified
2
2.11
Brian O'Connor
Career
Per 600 PA
Ed Siever
Careerverified
Per 600 PAverified
100
100