Sean O'Sullivan vs. Scott Williamson — Career Comparison
Sean O'Sullivan built a career as a starting pitcher and Scott Williamson as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Scott Williamson posted stronger surface numbers — ERA 3.36 and WHIP 1.357 compared to 6.01 and 1.616 for Sean O'Sullivan. By the career numbers, Scott Williamson had the better of this cross-role comparison — though era context would sharpen the verdict.
Pitching Stats for Sean O'Sullivan and Scott Williamson
Sean O'Sullivan
Career
Per 9 Innings
71
1.97
Scott Williamson
Career
Per 9 Innings
344
7.05
Sean O'Sullivan
Career
Per 9 Innings
56
1.56
Scott Williamson
Career
Per 9 Innings
10
0.2
Sean O'Sullivan
Career
Per 9 Innings
13
0.36
Scott Williamson
Career
Per 9 Innings
28
0.57
Sean O'Sullivan
Career
Per 9 Innings
23
0.64
Scott Williamson
Career
Per 9 Innings
28
0.57
Sean O'Sullivan
Career
Per 9 Innings
36.11
36.11
Scott Williamson
Career
Per 9 Innings
50
50
Sean O'Sullivan
Career
Per 9 Innings
78.87
78.87
Scott Williamson
Career
Per 9 Innings
2.91
2.91
Sean O'Sullivan
Career
Per 9 Innings
216
6.01
Scott Williamson
Career
Per 9 Innings
164
3.36
Sean O'Sullivan
Career
Per 9 Innings
6.01
6.01
Scott Williamson
Career
Per 9 Innings
3.36
3.36
Sean O'Sullivan
Career
Per 9 Innings
5.98
5.98
Scott Williamson
Career
Per 9 Innings
3.16
3.16
Sean O'Sullivan
Career
Per 9 Innings
5.58
5.58
Scott Williamson
Career
Per 9 Innings
3.48
3.48
Sean O'Sullivan
Career
Per 9 Innings
0.305
0.305
Scott Williamson
Career
Per 9 Innings
0.207
0.207
Sean O'Sullivan
Career
Per 9 Innings
971
27
Scott Williamson
Career
Per 9 Innings
1318
27
Sean O'Sullivan
Career
Per 9 Innings
323.2
9
Scott Williamson
Career
Per 9 Innings
439.1
9
Sean O'Sullivan
Career
Per 9 Innings
398
11.07
Scott Williamson
Career
Per 9 Innings
326
6.68
Sean O'Sullivan
Career
Per 9 Innings
11.07
11.07
Scott Williamson
Career
Per 9 Innings
6.68
6.68
Sean O'Sullivan
Career
Per 9 Innings
59
1.64
Scott Williamson
Career
Per 9 Innings
35
0.72
Sean O'Sullivan
Career
Per 9 Innings
1.64
1.64
Scott Williamson
Career
Per 9 Innings
0.72
0.72
Sean O'Sullivan
Career
Per 9 Innings
0.83
0.83
Scott Williamson
Career
Per 9 Innings
0.1
0.1
Sean O'Sullivan
Career
Per 9 Innings
115
3.2
Scott Williamson
Career
Per 9 Innings
244
5
Sean O'Sullivan
Career
Per 9 Innings
10
0.28
Scott Williamson
Career
Per 9 Innings
26
0.53
Sean O'Sullivan
Career
Per 9 Innings
3.2
3.2
Scott Williamson
Career
Per 9 Innings
5
5
Sean O'Sullivan
Career
Per 9 Innings
158
4.39
Scott Williamson
Career
Per 9 Innings
510
10.45
Sean O'Sullivan
Career
Per 9 Innings
4.39
4.39
Scott Williamson
Career
Per 9 Innings
10.45
10.45
Sean O'Sullivan
Career
Per 9 Innings
2.23
2.23
Scott Williamson
Career
Per 9 Innings
1.48
1.48
Sean O'Sullivan
Career
Per 9 Innings
0.844
0.844
Scott Williamson
Career
Per 9 Innings
1.716
1.716
Sean O'Sullivan
Career
Per 9 Innings
13
0.36
Scott Williamson
Career
Per 9 Innings
72
1.47
Sean O'Sullivan
Career
Per 9 Innings
13
0.36
Scott Williamson
Career
Per 9 Innings
14
0.29
Sean O'Sullivan
Career
Per 9 Innings
2
0.06
Scott Williamson
Career
Per 9 Innings
4
0.08
Sean O'Sullivan
Career
Per 9 Innings
1464
40.71
Scott Williamson
Career
Per 9 Innings
1864
38.19
Sean O'Sullivan
Career
Per 9 Innings
9
0.25
Scott Williamson
Career
Per 9 Innings
137
2.81
Sean O'Sullivan
Career
Per 9 Innings
226
6.28
Scott Williamson
Career
Per 9 Innings
180
3.69
Sean O'Sullivan
Career
Per 9 Innings
6.28
6.28
Scott Williamson
Career
Per 9 Innings
3.69
3.69
Sean O'Sullivan
Career
Per 9 Innings
11
0.31
Scott Williamson
Career
Per 9 Innings
18
0.37
Sean O'Sullivan
Career
Per 9 Innings
19
0.53
Scott Williamson
Career
Per 9 Innings
14
0.29
Sean O'Sullivan
Career
Per 9 Innings
32
0.89
Scott Williamson
Career
Per 9 Innings
34
0.7
Sean O'Sullivan
Career
Per 9 Innings
1.585
1.585
Scott Williamson
Career
Per 9 Innings
1.297
1.297
Sean O'Sullivan
Career
Per 9 Innings
1306
36.32
Scott Williamson
Career
Per 9 Innings
1574
32.24
Sean O'Sullivan
Career
Per 9 Innings
3.18
3.18
Scott Williamson
Career
Per 9 Innings
0.52
0.52
Sean O'Sullivan
Career
Per 9 Innings
0.311
0.311
Scott Williamson
Career
Per 9 Innings
0.283
0.283
Sean O'Sullivan
Career
Per 9 Innings
40.71
40.71
Scott Williamson
Career
Per 9 Innings
38.19
38.19
Fielding Stats for Sean O'Sullivan and Scott Williamson
Sean O'Sullivan
Career
Per 9 Innings
71
1.97
Scott Williamson
Career
Per 9 Innings
344
7.05
Sean O'Sullivan
Career
Per 9 Innings
56
1.56
Scott Williamson
Career
Per 9 Innings
10
0.2
Sean O'Sullivan
Career
Per 9 Innings
971
27
Scott Williamson
Career
Per 9 Innings
1318
27
Sean O'Sullivan
Career
Per 9 Innings
323.2
9
Scott Williamson
Career
Per 9 Innings
439.1
9
Sean O'Sullivan
Career
Per 9 Innings
22
0.61
Scott Williamson
Career
Per 9 Innings
18
0.37
Sean O'Sullivan
Career
Per 9 Innings
31
0.86
Scott Williamson
Career
Per 9 Innings
40
0.82
Sean O'Sullivan
Career
Per 9 Innings
3
0.08
Scott Williamson
Career
Per 9 Innings
3
0.06
Sean O'Sullivan
Career
Per 9 Innings
56
1.56
Scott Williamson
Career
Per 9 Innings
61
1.25
Sean O'Sullivan
Career
Per 9 Innings
53
1.47
Scott Williamson
Career
Per 9 Innings
58
1.19
Sean O'Sullivan
Career
Per 9 Innings
94.64
94.64
Scott Williamson
Career
Per 9 Innings
95.08
95.08
Sean O'Sullivan
Career
Per 9 Innings
0.747
0.747
Scott Williamson
Career
Per 9 Innings
0.169
0.169
Sean O'Sullivan
Career
Per 9 Innings
78.87
78.87
Scott Williamson
Career
Per 9 Innings
2.91
2.91
Sean O'Sullivan
Career
Per 9 Innings
2
0.06
Scott Williamson
Career
Per 9 Innings
2
0.04
Sean O'Sullivan
Career
Per 9 Innings
0
0
Scott Williamson
Career
Per 9 Innings
0
0
Sean O'Sullivan
Career
Per 9 Innings
0
0
Scott Williamson
Career
Per 9 Innings
0
0
Sean O'Sullivan
Career
Per 9 Innings
0
0
Scott Williamson
Career
Per 9 Innings
0
0
Hitting Stats for Sean O'Sullivan and Scott Williamson
Sean O'Sullivan
Career
Per 600 PA
71
1183.33
Scott Williamson
Career
Per 600 PA
344
6254.55
Sean O'Sullivan
Career
Per 600 PA
36
600
Scott Williamson
Career
Per 600 PA
33
600
Sean O'Sullivan
Career
Per 600 PA
33
550
Scott Williamson
Career
Per 600 PA
23
418.18
Sean O'Sullivan
Career
Per 600 PA
0.121
0.121
Scott Williamson
Career
Per 600 PA
0.044
0.044
Sean O'Sullivan
Career
Per 600 PA
0.375
0.375
Scott Williamson
Career
Per 600 PA
0.409
0.409
Sean O'Sullivan
Career
Per 600 PA
2
33.33
Scott Williamson
Career
Per 600 PA
1
18.18
Sean O'Sullivan
Career
Per 600 PA
0.94
15.66
Scott Williamson
Career
Per 600 PA
0.21
3.79
Sean O'Sullivan
Career
Per 600 PA
6
100
Scott Williamson
Career
Per 600 PA
1
18.18
Sean O'Sullivan
Career
Per 600 PA
5
83.33
Scott Williamson
Career
Per 600 PA
4
72.73
Sean O'Sullivan
Career
Per 600 PA
0.147
0.147
Scott Williamson
Career
Per 600 PA
0.154
0.154
Sean O'Sullivan
Career
Per 600 PA
0.182
0.182
Scott Williamson
Career
Per 600 PA
0.044
0.044
Sean O'Sullivan
Career
Per 600 PA
0.329
0.329
Scott Williamson
Career
Per 600 PA
0.197
0.197
Sean O'Sullivan
Career
Per 600 PA
0.112
0.112
Scott Williamson
Career
Per 600 PA
0.08
0.08
Sean O'Sullivan
Career
Per 600 PA
0.241
0.241
Scott Williamson
Career
Per 600 PA
0.182
0.182
Sean O'Sullivan
Career
Per 600 PA
0.25
0.25
Scott Williamson
Career
Per 600 PA
0.111
0.111
Sean O'Sullivan
Career
Per 600 PA
3
50
Scott Williamson
Career
Per 600 PA
1
18.18
Sean O'Sullivan
Career
Per 600 PA
-0.11
-1.78
Scott Williamson
Career
Per 600 PA
-0.56
-10.27
Sean O'Sullivan
Career
Per 600 PA
17
283.33
Scott Williamson
Career
Per 600 PA
14
254.55
Sean O'Sullivan
Career
Per 600 PA
2.12
2.12
Scott Williamson
Career
Per 600 PA
2.36
2.36
Sean O'Sullivan
Career
Per 600 PA
0.06
0.06
Scott Williamson
Career
Per 600 PA
0.21
0.21
Sean O'Sullivan
Career
Per 600 PA
2
33.33
Scott Williamson
Career
Per 600 PA
7
127.27
Sean O'Sullivan
Career
Per 600 PA
0
0
Scott Williamson
Career
Per 600 PA
0
0