Brian O'Connor vs. Nate Robertson — Career Comparison

Brian O'Connor
Gen XOhioThrows LeftBats LeftNorth AmericaPittsburgh PiratesNational LeagueRelief Pitcher
Nate Robertson
Gen XKansasThrows LeftBats RightNorth AmericaDetroit TigersAmerican LeagueStarting Pitcher

Nate Robertson 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. Nate Robertson posted stronger surface numbers — ERA 5.01 and WHIP 1.493 compared to 5.11 and 1.865 for Brian O'Connor. By the career numbers, Nate Robertson had the better of this cross-role comparison — though era context would sharpen the verdict.

Pitching Stats for Brian O'Connor and Nate Robertson

Brian O'Connor
Career
Per 9 Innings
1
1
Nate Robertson
Careerverified
Per 9 Inningsverified
9
9
Brian O'Connor
Career
Per 9 Inningsverified
6
4.38
Nate Robertson
Careerverified
Per 9 Innings
223
1.74
Brian O'Connor
Career
Per 9 Innings
1
0.73
Nate Robertson
Careerverified
Per 9 Inningsverified
187
1.46
Brian O'Connor
Career
Per 9 Innings
0
0
Nate Robertson
Careerverified
Per 9 Inningsverified
57
0.45
Brian O'Connor
Careerverified
Per 9 Inningsverified
0
0
Nate Robertson
Career
Per 9 Innings
77
0.6
Brian O'Connor
Career
Per 9 Innings
Nate Robertson
Careerverified
Per 9 Inningsverified
42.54
42.54
Brian O'Connor
Career
Per 9 Innings
16.67
16.67
Nate Robertson
Careerverified
Per 9 Inningsverified
83.86
83.86
Brian O'Connor
Career
Per 9 Innings
0
0
Nate Robertson
Careerverified
Per 9 Inningsverified
4
0.03
Brian O'Connor
Career
Per 9 Innings
0
0
Nate Robertson
Career
Per 9 Innings
0
0
Brian O'Connor
Career
Per 9 Innings
0
0
Nate Robertson
Careerverified
Per 9 Inningsverified
1
0.01
Brian O'Connor
Careerverified
Per 9 Innings
7
5.11
Nate Robertson
Career
Per 9 Inningsverified
642
5.01
Brian O'Connor
Career
Per 9 Innings
5.11
5.11
Nate Robertson
Careerverified
Per 9 Inningsverified
5.01
5.01
Brian O'Connor
Career
Per 9 Innings
6.5
6.5
Nate Robertson
Careerverified
Per 9 Inningsverified
4.95
4.95
Brian O'Connor
Career
Per 9 Innings
6.89
6.89
Nate Robertson
Careerverified
Per 9 Inningsverified
4.64
4.64
Brian O'Connor
Careerverified
Per 9 Inningsverified
0.25
0.25
Nate Robertson
Career
Per 9 Innings
0.282
0.282
Brian O'Connor
Career
Per 9 Innings
37
27
Nate Robertson
Careerverified
Per 9 Innings
3457
27
Brian O'Connor
Career
Per 9 Innings
12.1
9
Nate Robertson
Careerverified
Per 9 Innings
1152.1
9
Brian O'Connor
Careerverified
Per 9 Inningsverified
12
8.76
Nate Robertson
Career
Per 9 Innings
1279
9.99
Brian O'Connor
Careerverified
Per 9 Inningsverified
8.76
8.76
Nate Robertson
Career
Per 9 Innings
9.99
9.99
Brian O'Connor
Careerverified
Per 9 Innings
2
1.46
Nate Robertson
Career
Per 9 Inningsverified
160
1.25
Brian O'Connor
Career
Per 9 Innings
1.46
1.46
Nate Robertson
Careerverified
Per 9 Inningsverified
1.25
1.25
Brian O'Connor
Careerverified
Per 9 Inningsverified
0.33
0.33
Nate Robertson
Career
Per 9 Innings
0.72
0.72
Brian O'Connor
Careerverified
Per 9 Innings
11
8.03
Nate Robertson
Career
Per 9 Inningsverified
420
3.28
Brian O'Connor
Careerverified
Per 9 Inningsverified
0
0
Nate Robertson
Career
Per 9 Innings
21
0.16
Brian O'Connor
Career
Per 9 Innings
8.03
8.03
Nate Robertson
Careerverified
Per 9 Inningsverified
3.28
3.28
Brian O'Connor
Career
Per 9 Innings
7
5.11
Nate Robertson
Careerverified
Per 9 Inningsverified
775
6.05
Brian O'Connor
Career
Per 9 Innings
5.11
5.11
Nate Robertson
Careerverified
Per 9 Inningsverified
6.05
6.05
Brian O'Connor
Career
Per 9 Innings
1.17
1.17
Nate Robertson
Careerverified
Per 9 Inningsverified
3.48
3.48
Brian O'Connor
Careerverified
Per 9 Inningsverified
1.46
1.46
Nate Robertson
Career
Per 9 Innings
1.037
1.037
Brian O'Connor
Careerverified
Per 9 Innings
4
2.92
Nate Robertson
Career
Per 9 Inningsverified
34
0.27
Brian O'Connor
Careerverified
Per 9 Innings
1
0.73
Nate Robertson
Career
Per 9 Inningsverified
34
0.27
Brian O'Connor
Careerverified
Per 9 Inningsverified
0
0
Nate Robertson
Career
Per 9 Innings
4
0.03
Brian O'Connor
Career
Per 9 Inningsverified
62
45.24
Nate Robertson
Careerverified
Per 9 Innings
5064
39.55
Brian O'Connor
Career
Per 9 Inningsverified
2
1.46
Nate Robertson
Careerverified
Per 9 Innings
8
0.06
Brian O'Connor
Careerverified
Per 9 Innings
11
8.03
Nate Robertson
Career
Per 9 Inningsverified
696
5.44
Brian O'Connor
Career
Per 9 Innings
8.03
8.03
Nate Robertson
Careerverified
Per 9 Inningsverified
5.44
5.44
Brian O'Connor
Careerverified
Per 9 Innings
1
0.73
Nate Robertson
Career
Per 9 Inningsverified
39
0.3
Brian O'Connor
Careerverified
Per 9 Innings
1
0.73
Nate Robertson
Career
Per 9 Inningsverified
36
0.28
Brian O'Connor
Career
Per 9 Innings
0
0
Nate Robertson
Careerverified
Per 9 Inningsverified
136
1.06
Brian O'Connor
Career
Per 9 Innings
1.865
1.865
Nate Robertson
Careerverified
Per 9 Inningsverified
1.474
1.474
Brian O'Connor
Career
Per 9 Innings
48
35.03
Nate Robertson
Careerverified
Per 9 Inningsverified
4535
35.42
Brian O'Connor
Careerverified
Per 9 Inningsverified
1.83
1.83
Nate Robertson
Career
Per 9 Innings
3.12
3.12
Brian O'Connor
Careerverified
Per 9 Inningsverified
0.256
0.256
Nate Robertson
Career
Per 9 Innings
0.311
0.311
Brian O'Connor
Careerverified
Per 9 Inningsverified
45.24
45.24
Nate Robertson
Career
Per 9 Innings
39.55
39.55

Fielding Stats for Brian O'Connor and Nate Robertson

Brian O'Connor
Career
Per 9 Innings
1
1
Nate Robertson
Careerverified
Per 9 Inningsverified
9
9
Brian O'Connor
Career
Per 9 Inningsverified
6
4.38
Nate Robertson
Careerverified
Per 9 Innings
223
1.74
Brian O'Connor
Career
Per 9 Innings
1
0.73
Nate Robertson
Careerverified
Per 9 Inningsverified
187
1.46
Brian O'Connor
Career
Per 9 Innings
37
27
Nate Robertson
Careerverified
Per 9 Innings
3457
27
Brian O'Connor
Career
Per 9 Innings
12.1
9
Nate Robertson
Careerverified
Per 9 Innings
1152.1
9
Brian O'Connor
Career
Per 9 Innings
0
0
Nate Robertson
Careerverified
Per 9 Inningsverified
42
0.33
Brian O'Connor
Career
Per 9 Innings
0
0
Nate Robertson
Careerverified
Per 9 Inningsverified
142
1.11
Brian O'Connor
Careerverified
Per 9 Inningsverified
0
0
Nate Robertson
Career
Per 9 Innings
19
0.15
Brian O'Connor
Career
Per 9 Innings
0
0
Nate Robertson
Careerverified
Per 9 Inningsverified
203
1.59
Brian O'Connor
Career
Per 9 Innings
0
0
Nate Robertson
Careerverified
Per 9 Inningsverified
184
1.44
Brian O'Connor
Career
Per 9 Innings
Nate Robertson
Careerverified
Per 9 Inningsverified
90.64
90.64
Brian O'Connor
Career
Per 9 Innings
0
0
Nate Robertson
Careerverified
Per 9 Inningsverified
0.825
0.825
Brian O'Connor
Career
Per 9 Innings
16.67
16.67
Nate Robertson
Careerverified
Per 9 Inningsverified
83.86
83.86
Brian O'Connor
Career
Per 9 Innings
0
0
Nate Robertson
Careerverified
Per 9 Inningsverified
11
0.09
Brian O'Connor
Career
Per 9 Innings
0
0
Nate Robertson
Career
Per 9 Innings
0
0
Brian O'Connor
Career
Per 9 Innings
0
0
Nate Robertson
Career
Per 9 Innings
0
0
Brian O'Connor
Career
Per 9 Innings
0
0
Nate Robertson
Career
Per 9 Innings
0
0
Brian O'Connor
Career
Per 9 Innings
0
0
Nate Robertson
Career
Per 9 Innings
0
0

Hitting Stats for Brian O'Connor and Nate Robertson

Brian O'Connor
Career
Per 600 PA
1
1
Nate Robertson
Careerverified
Per 600 PAverified
9
9
Brian O'Connor
Career
Per 600 PA
6
1800
Nate Robertson
Careerverified
Per 600 PAverified
223
2477.78
Brian O'Connor
Career
Per 600 PA
2
600
Nate Robertson
Careerverified
Per 600 PA
54
600
Brian O'Connor
Career
Per 600 PAverified
2
600
Nate Robertson
Careerverified
Per 600 PA
44
488.89
Brian O'Connor
Careerverified
Per 600 PAverified
0.5
0.5
Nate Robertson
Career
Per 600 PA
0.136
0.136
Brian O'Connor
Careerverified
Per 600 PAverified
1
1
Nate Robertson
Career
Per 600 PA
0.444
0.444
Brian O'Connor
Career
Per 600 PAverified
1
300
Nate Robertson
Careerverified
Per 600 PA
6
66.67
Brian O'Connor
Career
Per 600 PAverified
1
300
Nate Robertson
Careerverified
Per 600 PA
5
55.56
Brian O'Connor
Career
Per 600 PA
0
0
Nate Robertson
Careerverified
Per 600 PAverified
1
11.11
Brian O'Connor
Career
Per 600 PA
0
0
Nate Robertson
Career
Per 600 PA
0
0
Brian O'Connor
Career
Per 600 PA
0
0
Nate Robertson
Career
Per 600 PA
0
0
Brian O'Connor
Career
Per 600 PA
0
0
Nate Robertson
Careerverified
Per 600 PAverified
1
11.11
Brian O'Connor
Career
Per 600 PA
0
0
Nate Robertson
Careerverified
Per 600 PAverified
0.167
0.167
Brian O'Connor
Career
Per 600 PA
0
0
Nate Robertson
Career
Per 600 PA
0
0
Brian O'Connor
Career
Per 600 PA
0
0
Nate Robertson
Career
Per 600 PA
0
0
Brian O'Connor
Career
Per 600 PAverified
0.47
140.43
Nate Robertson
Careerverified
Per 600 PA
0.9
9.98
Brian O'Connor
Career
Per 600 PAverified
1
300
Nate Robertson
Careerverified
Per 600 PA
7
77.78
Brian O'Connor
Career
Per 600 PAverified
1
300
Nate Robertson
Careerverified
Per 600 PA
8
88.89
Brian O'Connor
Careerverified
Per 600 PAverified
0.5
0.5
Nate Robertson
Career
Per 600 PA
0.174
0.174
Brian O'Connor
Careerverified
Per 600 PAverified
0.5
0.5
Nate Robertson
Career
Per 600 PA
0.159
0.159
Brian O'Connor
Careerverified
Per 600 PAverified
1
1
Nate Robertson
Career
Per 600 PA
0.333
0.333
Brian O'Connor
Career
Per 600 PA
0
0
Nate Robertson
Careerverified
Per 600 PAverified
0.023
0.023
Brian O'Connor
Careerverified
Per 600 PAverified
0.35
0.35
Nate Robertson
Career
Per 600 PA
0.118
0.118
Brian O'Connor
Careerverified
Per 600 PAverified
1
1
Nate Robertson
Career
Per 600 PA
0.225
0.225
Brian O'Connor
Careerverified
Per 600 PAverified
1
1
Nate Robertson
Career
Per 600 PA
0.207
0.207
Brian O'Connor
Career
Per 600 PA
0
0
Nate Robertson
Careerverified
Per 600 PAverified
2
22.22
Brian O'Connor
Career
Per 600 PA
0
0
Nate Robertson
Careerverified
Per 600 PAverified
2
22.22
Brian O'Connor
Career
Per 600 PA
0
0
Nate Robertson
Careerverified
Per 600 PAverified
4
44.44
Brian O'Connor
Careerverified
Per 600 PAverified
0.52
156.97
Nate Robertson
Career
Per 600 PA
-0.09
-1.02
Brian O'Connor
Career
Per 600 PA
0
0
Nate Robertson
Career
Per 600 PA
0
0
Brian O'Connor
Career
Per 600 PA
0
0
Nate Robertson
Careerverified
Per 600 PAverified
2
22.22
Brian O'Connor
Career
Per 600 PA
0
0
Nate Robertson
Career
Per 600 PA
0
0
Brian O'Connor
Careerverified
Per 600 PA
1
300
Nate Robertson
Career
Per 600 PAverified
15
166.67
Brian O'Connor
Career
Per 600 PA
2
2
Nate Robertson
Careerverified
Per 600 PAverified
3.6
3.6
Brian O'Connor
Career
Per 600 PA
0
0
Nate Robertson
Careerverified
Per 600 PAverified
0.13
0.13
Brian O'Connor
Career
Per 600 PA
0
0
Nate Robertson
Careerverified
Per 600 PAverified
8
88.89
Brian O'Connor
Career
Per 600 PA
0
0
Nate Robertson
Career
Per 600 PA
0
0
Brian O'Connor
Careerverified
Per 600 PAverified
0
0
Nate Robertson
Career
Per 600 PA
2
22.22
Brian O'Connor
Career
Per 600 PA
0
0
Nate Robertson
Career
Per 600 PA
0
0
Brian O'Connor
Career
Per 600 PA
0
0
Nate Robertson
Career
Per 600 PA
0
0
Brian O'Connor
Career
Per 600 PA
0
0
Nate Robertson
Career
Per 600 PA
0
0
Brian O'Connor
Career
Per 600 PA
Nate Robertson
Career
Per 600 PA