Alex Kellner vs. Brian O'Connor — Career Comparison

Alex Kellner
Greatest GenerationArizonaThrows LeftBats RightNorth AmericaPhiladelphia AthleticsAmerican LeagueStarting PitcherAll-Star
Brian O'Connor
Gen XOhioThrows LeftBats LeftNorth AmericaPittsburgh PiratesNational LeagueRelief Pitcher

Alex Kellner 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. Alex Kellner posted stronger surface numbers — ERA 4.41 and WHIP 1.451 compared to 5.11 and 1.865 for Brian O'Connor. By the career numbers, Alex Kellner had the better of this cross-role comparison — though era context would sharpen the verdict.

Pitching Stats for Alex Kellner and Brian O'Connor

Alex Kellner
Careerverified
Per 9 Inningsverified
12
12
Brian O'Connor
Career
Per 9 Innings
1
1
Alex Kellner
Careerverified
Per 9 Innings
321
1.56
Brian O'Connor
Career
Per 9 Inningsverified
6
4.38
Alex Kellner
Careerverified
Per 9 Inningsverified
250
1.22
Brian O'Connor
Career
Per 9 Innings
1
0.73
Alex Kellner
Careerverified
Per 9 Inningsverified
101
0.49
Brian O'Connor
Career
Per 9 Innings
0
0
Alex Kellner
Career
Per 9 Innings
112
0.55
Brian O'Connor
Careerverified
Per 9 Inningsverified
0
0
Alex Kellner
Careerverified
Per 9 Inningsverified
47.42
47.42
Brian O'Connor
Career
Per 9 Innings
Alex Kellner
Careerverified
Per 9 Inningsverified
77.88
77.88
Brian O'Connor
Career
Per 9 Innings
16.67
16.67
Alex Kellner
Careerverified
Per 9 Inningsverified
99
0.48
Brian O'Connor
Career
Per 9 Innings
0
0
Alex Kellner
Careerverified
Per 9 Inningsverified
9
0.04
Brian O'Connor
Career
Per 9 Innings
0
0
Alex Kellner
Careerverified
Per 9 Inningsverified
5
0.02
Brian O'Connor
Career
Per 9 Innings
0
0
Alex Kellner
Career
Per 9 Inningsverified
906
4.41
Brian O'Connor
Careerverified
Per 9 Innings
7
5.11
Alex Kellner
Careerverified
Per 9 Inningsverified
4.41
4.41
Brian O'Connor
Career
Per 9 Innings
5.11
5.11
Alex Kellner
Careerverified
Per 9 Inningsverified
4.42
4.42
Brian O'Connor
Career
Per 9 Innings
6.5
6.5
Alex Kellner
Careerverified
Per 9 Inningsverified
4.68
4.68
Brian O'Connor
Career
Per 9 Innings
6.89
6.89
Alex Kellner
Career
Per 9 Innings
0.266
0.266
Brian O'Connor
Careerverified
Per 9 Inningsverified
0.25
0.25
Alex Kellner
Careerverified
Per 9 Innings
5548
27
Brian O'Connor
Career
Per 9 Innings
37
27
Alex Kellner
Careerverified
Per 9 Innings
1849.1
9
Brian O'Connor
Career
Per 9 Innings
12.1
9
Alex Kellner
Career
Per 9 Innings
1925
9.37
Brian O'Connor
Careerverified
Per 9 Inningsverified
12
8.76
Alex Kellner
Career
Per 9 Innings
9.37
9.37
Brian O'Connor
Careerverified
Per 9 Inningsverified
8.76
8.76
Alex Kellner
Career
Per 9 Inningsverified
184
0.9
Brian O'Connor
Careerverified
Per 9 Innings
2
1.46
Alex Kellner
Careerverified
Per 9 Inningsverified
0.9
0.9
Brian O'Connor
Career
Per 9 Innings
1.46
1.46
Alex Kellner
Career
Per 9 Innings
0.57
0.57
Brian O'Connor
Careerverified
Per 9 Inningsverified
0.33
0.33
Alex Kellner
Career
Per 9 Inningsverified
747
3.64
Brian O'Connor
Careerverified
Per 9 Innings
11
8.03
Alex Kellner
Career
Per 9 Innings
11
0.05
Brian O'Connor
Careerverified
Per 9 Inningsverified
0
0
Alex Kellner
Careerverified
Per 9 Inningsverified
3.64
3.64
Brian O'Connor
Career
Per 9 Innings
8.03
8.03
Alex Kellner
Careerverified
Per 9 Innings
816
3.97
Brian O'Connor
Career
Per 9 Inningsverified
7
5.11
Alex Kellner
Career
Per 9 Innings
3.97
3.97
Brian O'Connor
Careerverified
Per 9 Inningsverified
5.11
5.11
Alex Kellner
Careerverified
Per 9 Inningsverified
2.54
2.54
Brian O'Connor
Career
Per 9 Innings
1.17
1.17
Alex Kellner
Career
Per 9 Innings
0.845
0.845
Brian O'Connor
Careerverified
Per 9 Inningsverified
1.46
1.46
Alex Kellner
Career
Per 9 Inningsverified
53
0.26
Brian O'Connor
Careerverified
Per 9 Innings
4
2.92
Alex Kellner
Career
Per 9 Inningsverified
37
0.18
Brian O'Connor
Careerverified
Per 9 Innings
1
0.73
Alex Kellner
Career
Per 9 Innings
3
0.01
Brian O'Connor
Careerverified
Per 9 Inningsverified
0
0
Alex Kellner
Careerverified
Per 9 Innings
8023
39.04
Brian O'Connor
Career
Per 9 Inningsverified
62
45.24
Alex Kellner
Careerverified
Per 9 Innings
37
0.18
Brian O'Connor
Career
Per 9 Inningsverified
2
1.46
Alex Kellner
Career
Per 9 Inningsverified
1015
4.94
Brian O'Connor
Careerverified
Per 9 Innings
11
8.03
Alex Kellner
Careerverified
Per 9 Inningsverified
4.94
4.94
Brian O'Connor
Career
Per 9 Innings
8.03
8.03
Alex Kellner
Careerverified
Per 9 Inningsverified
0
0
Brian O'Connor
Career
Per 9 Innings
1
0.73
Alex Kellner
Careerverified
Per 9 Inningsverified
0
0
Brian O'Connor
Career
Per 9 Innings
1
0.73
Alex Kellner
Career
Per 9 Innings
0
0
Brian O'Connor
Career
Per 9 Innings
0
0
Alex Kellner
Careerverified
Per 9 Inningsverified
1.445
1.445
Brian O'Connor
Career
Per 9 Innings
1.865
1.865
Alex Kellner
Careerverified
Per 9 Inningsverified
7239
35.23
Brian O'Connor
Career
Per 9 Innings
48
35.03
Alex Kellner
Career
Per 9 Innings
3.16
3.16
Brian O'Connor
Careerverified
Per 9 Inningsverified
1.83
1.83
Alex Kellner
Career
Per 9 Innings
0.279
0.279
Brian O'Connor
Careerverified
Per 9 Inningsverified
0.256
0.256
Alex Kellner
Career
Per 9 Innings
39.04
39.04
Brian O'Connor
Careerverified
Per 9 Inningsverified
45.24
45.24

Fielding Stats for Alex Kellner and Brian O'Connor

Alex Kellner
Careerverified
Per 9 Inningsverified
12
12
Brian O'Connor
Career
Per 9 Innings
1
1
Alex Kellner
Careerverified
Per 9 Innings
321
4.05
Brian O'Connor
Career
Per 9 Inningsverified
6
4.38
Alex Kellner
Careerverified
Per 9 Inningsverified
106
1.34
Brian O'Connor
Career
Per 9 Innings
1
0.73
Alex Kellner
Careerverified
Per 9 Innings
2139
27
Brian O'Connor
Career
Per 9 Innings
37
27
Alex Kellner
Careerverified
Per 9 Innings
713
9
Brian O'Connor
Career
Per 9 Innings
12.1
9
Alex Kellner
Careerverified
Per 9 Inningsverified
83
1.05
Brian O'Connor
Career
Per 9 Innings
0
0
Alex Kellner
Careerverified
Per 9 Inningsverified
280
3.53
Brian O'Connor
Career
Per 9 Innings
0
0
Alex Kellner
Career
Per 9 Innings
17
0.21
Brian O'Connor
Careerverified
Per 9 Inningsverified
0
0
Alex Kellner
Careerverified
Per 9 Inningsverified
380
4.8
Brian O'Connor
Career
Per 9 Innings
0
0
Alex Kellner
Careerverified
Per 9 Inningsverified
363
4.58
Brian O'Connor
Career
Per 9 Innings
0
0
Alex Kellner
Careerverified
Per 9 Inningsverified
95.53
95.53
Brian O'Connor
Career
Per 9 Innings
Alex Kellner
Careerverified
Per 9 Inningsverified
1.131
1.131
Brian O'Connor
Career
Per 9 Innings
0
0
Alex Kellner
Careerverified
Per 9 Inningsverified
33.02
33.02
Brian O'Connor
Career
Per 9 Innings
16.67
16.67
Alex Kellner
Careerverified
Per 9 Inningsverified
27
0.34
Brian O'Connor
Career
Per 9 Innings
0
0
Alex Kellner
Career
Per 9 Innings
0
0
Brian O'Connor
Career
Per 9 Innings
0
0
Alex Kellner
Career
Per 9 Innings
0
0
Brian O'Connor
Career
Per 9 Innings
0
0
Alex Kellner
Career
Per 9 Innings
0
0
Brian O'Connor
Career
Per 9 Innings
0
0
Alex Kellner
Career
Per 9 Innings
0
0
Brian O'Connor
Career
Per 9 Innings
0
0

Hitting Stats for Alex Kellner and Brian O'Connor

Alex Kellner
Careerverified
Per 600 PAverified
12
12
Brian O'Connor
Career
Per 600 PA
1
1
Alex Kellner
Careerverified
Per 600 PA
323
275.28
Brian O'Connor
Career
Per 600 PAverified
6
1800
Alex Kellner
Careerverified
Per 600 PA
704
600
Brian O'Connor
Career
Per 600 PA
2
600
Alex Kellner
Careerverified
Per 600 PA
643
548.01
Brian O'Connor
Career
Per 600 PAverified
2
600
Alex Kellner
Career
Per 600 PA
0.215
0.215
Brian O'Connor
Careerverified
Per 600 PAverified
0.5
0.5
Alex Kellner
Career
Per 600 PA
0.544
0.544
Brian O'Connor
Careerverified
Per 600 PAverified
1
1
Alex Kellner
Careerverified
Per 600 PA
138
117.61
Brian O'Connor
Career
Per 600 PAverified
1
300
Alex Kellner
Careerverified
Per 600 PA
117
99.72
Brian O'Connor
Career
Per 600 PAverified
1
300
Alex Kellner
Careerverified
Per 600 PAverified
16
13.64
Brian O'Connor
Career
Per 600 PA
0
0
Alex Kellner
Careerverified
Per 600 PAverified
1
0.85
Brian O'Connor
Career
Per 600 PA
0
0
Alex Kellner
Careerverified
Per 600 PAverified
4
3.41
Brian O'Connor
Career
Per 600 PA
0
0
Alex Kellner
Careerverified
Per 600 PAverified
21
17.9
Brian O'Connor
Career
Per 600 PA
0
0
Alex Kellner
Careerverified
Per 600 PAverified
0.152
0.152
Brian O'Connor
Career
Per 600 PA
0
0
Alex Kellner
Careerverified
Per 600 PAverified
0.006
0.006
Brian O'Connor
Career
Per 600 PA
0
0
Alex Kellner
Careerverified
Per 600 PAverified
0.029
0.029
Brian O'Connor
Career
Per 600 PA
0
0
Alex Kellner
Careerverified
Per 600 PA
37.84
32.25
Brian O'Connor
Career
Per 600 PAverified
0.47
140.43
Alex Kellner
Careerverified
Per 600 PA
168
143.18
Brian O'Connor
Career
Per 600 PAverified
1
300
Alex Kellner
Careerverified
Per 600 PA
170
144.89
Brian O'Connor
Career
Per 600 PAverified
1
300
Alex Kellner
Career
Per 600 PA
0.252
0.252
Brian O'Connor
Careerverified
Per 600 PAverified
0.5
0.5
Alex Kellner
Career
Per 600 PA
0.261
0.261
Brian O'Connor
Careerverified
Per 600 PAverified
0.5
0.5
Alex Kellner
Career
Per 600 PA
0.513
0.513
Brian O'Connor
Careerverified
Per 600 PAverified
1
1
Alex Kellner
Careerverified
Per 600 PAverified
0.047
0.047
Brian O'Connor
Career
Per 600 PA
0
0
Alex Kellner
Career
Per 600 PA
0.179
0.179
Brian O'Connor
Careerverified
Per 600 PAverified
0.35
0.35
Alex Kellner
Career
Per 600 PA
0.379
0.379
Brian O'Connor
Careerverified
Per 600 PAverified
1
1
Alex Kellner
Career
Per 600 PA
0.251
0.251
Brian O'Connor
Careerverified
Per 600 PAverified
1
1
Alex Kellner
Careerverified
Per 600 PAverified
49
41.76
Brian O'Connor
Career
Per 600 PA
0
0
Alex Kellner
Careerverified
Per 600 PAverified
57
48.58
Brian O'Connor
Career
Per 600 PA
0
0
Alex Kellner
Careerverified
Per 600 PAverified
102
86.93
Brian O'Connor
Career
Per 600 PA
0
0
Alex Kellner
Careerverified
Per 600 PA
39.63
33.77
Brian O'Connor
Career
Per 600 PAverified
0.52
156.97
Alex Kellner
Careerverified
Per 600 PAverified
2
1.7
Brian O'Connor
Career
Per 600 PA
0
0
Alex Kellner
Careerverified
Per 600 PAverified
30
25.57
Brian O'Connor
Career
Per 600 PA
0
0
Alex Kellner
Career
Per 600 PA
0
0
Brian O'Connor
Career
Per 600 PA
0
0
Alex Kellner
Career
Per 600 PAverified
106
90.34
Brian O'Connor
Careerverified
Per 600 PA
1
300
Alex Kellner
Careerverified
Per 600 PAverified
6.64
6.64
Brian O'Connor
Career
Per 600 PA
2
2
Alex Kellner
Careerverified
Per 600 PAverified
0.28
0.28
Brian O'Connor
Career
Per 600 PA
0
0
Alex Kellner
Careerverified
Per 600 PAverified
28
23.86
Brian O'Connor
Career
Per 600 PA
0
0
Alex Kellner
Careerverified
Per 600 PAverified
1
0.85
Brian O'Connor
Career
Per 600 PA
0
0
Alex Kellner
Career
Per 600 PA
23
19.6
Brian O'Connor
Careerverified
Per 600 PAverified
0
0
Alex Kellner
Career
Per 600 PA
0
0
Brian O'Connor
Career
Per 600 PA
0
0
Alex Kellner
Career
Per 600 PA
0
0
Brian O'Connor
Career
Per 600 PA
0
0
Alex Kellner
Career
Per 600 PA
0
0
Brian O'Connor
Career
Per 600 PA
0
0
Alex Kellner
Career
Per 600 PA
Brian O'Connor
Career
Per 600 PA