Sean O'Sullivan vs. Jason Shiell — Career Comparison

Sean O'Sullivan
MillenialCaliforniaThrows RightBats RightNorth AmericaKansas City RoyalsAmerican LeagueStarting Pitcher
Jason Shiell
Gen XGeorgiaThrows RightBats RightNorth AmericaBoston Red SoxAmerican LeagueRelief Pitcher

Sean O'Sullivan built a career as a starting pitcher and Jason Shiell as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Sean O'Sullivan posted stronger surface numbers — ERA 6.01 and WHIP 1.616 compared to 6.92 and 2.107 for Jason Shiell. By the career numbers, Sean O'Sullivan had the better of this cross-role comparison — though era context would sharpen the verdict.

Pitching Stats for Sean O'Sullivan and Jason Shiell

Sean O'Sullivan
Careerverified
Per 9 Inningsverified
7
7
Jason Shiell
Career
Per 9 Innings
3
3
Sean O'Sullivan
Careerverified
Per 9 Innings
71
1.97
Jason Shiell
Career
Per 9 Inningsverified
24
5.36
Sean O'Sullivan
Careerverified
Per 9 Inningsverified
56
1.56
Jason Shiell
Career
Per 9 Innings
3
0.67
Sean O'Sullivan
Careerverified
Per 9 Innings
13
0.36
Jason Shiell
Career
Per 9 Inningsverified
2
0.45
Sean O'Sullivan
Career
Per 9 Innings
23
0.64
Jason Shiell
Careerverified
Per 9 Inningsverified
2
0.45
Sean O'Sullivan
Career
Per 9 Innings
36.11
36.11
Jason Shiell
Careerverified
Per 9 Inningsverified
50
50
Sean O'Sullivan
Careerverified
Per 9 Inningsverified
78.87
78.87
Jason Shiell
Career
Per 9 Innings
12.5
12.5
Sean O'Sullivan
Career
Per 9 Innings
0
0
Jason Shiell
Career
Per 9 Innings
0
0
Sean O'Sullivan
Career
Per 9 Innings
0
0
Jason Shiell
Career
Per 9 Innings
0
0
Sean O'Sullivan
Career
Per 9 Innings
0
0
Jason Shiell
Careerverified
Per 9 Inningsverified
1
0.22
Sean O'Sullivan
Career
Per 9 Inningsverified
216
6.01
Jason Shiell
Careerverified
Per 9 Innings
31
6.92
Sean O'Sullivan
Careerverified
Per 9 Inningsverified
6.01
6.01
Jason Shiell
Career
Per 9 Innings
6.92
6.92
Sean O'Sullivan
Careerverified
Per 9 Inningsverified
5.98
5.98
Jason Shiell
Career
Per 9 Innings
8.54
8.54
Sean O'Sullivan
Careerverified
Per 9 Inningsverified
5.58
5.58
Jason Shiell
Career
Per 9 Innings
6.4
6.4
Sean O'Sullivan
Careerverified
Per 9 Inningsverified
0.305
0.305
Jason Shiell
Career
Per 9 Innings
0.316
0.316
Sean O'Sullivan
Careerverified
Per 9 Innings
971
27
Jason Shiell
Career
Per 9 Innings
121
27
Sean O'Sullivan
Careerverified
Per 9 Innings
323.2
9
Jason Shiell
Career
Per 9 Innings
40.1
9
Sean O'Sullivan
Career
Per 9 Inningsverified
398
11.07
Jason Shiell
Careerverified
Per 9 Innings
53
11.83
Sean O'Sullivan
Careerverified
Per 9 Inningsverified
11.07
11.07
Jason Shiell
Career
Per 9 Innings
11.83
11.83
Sean O'Sullivan
Career
Per 9 Inningsverified
59
1.64
Jason Shiell
Careerverified
Per 9 Innings
9
2.01
Sean O'Sullivan
Careerverified
Per 9 Inningsverified
1.64
1.64
Jason Shiell
Career
Per 9 Innings
2.01
2.01
Sean O'Sullivan
Career
Per 9 Innings
0.83
0.83
Jason Shiell
Careerverified
Per 9 Inningsverified
0.38
0.38
Sean O'Sullivan
Career
Per 9 Inningsverified
115
3.2
Jason Shiell
Careerverified
Per 9 Innings
29
6.47
Sean O'Sullivan
Career
Per 9 Inningsverified
10
0.28
Jason Shiell
Careerverified
Per 9 Innings
3
0.67
Sean O'Sullivan
Careerverified
Per 9 Inningsverified
3.2
3.2
Jason Shiell
Career
Per 9 Innings
6.47
6.47
Sean O'Sullivan
Careerverified
Per 9 Innings
158
4.39
Jason Shiell
Career
Per 9 Inningsverified
38
8.48
Sean O'Sullivan
Career
Per 9 Innings
4.39
4.39
Jason Shiell
Careerverified
Per 9 Inningsverified
8.48
8.48
Sean O'Sullivan
Careerverified
Per 9 Inningsverified
2.23
2.23
Jason Shiell
Career
Per 9 Innings
1.58
1.58
Sean O'Sullivan
Career
Per 9 Innings
0.844
0.844
Jason Shiell
Careerverified
Per 9 Inningsverified
1.661
1.661
Sean O'Sullivan
Career
Per 9 Inningsverified
13
0.36
Jason Shiell
Careerverified
Per 9 Innings
2
0.45
Sean O'Sullivan
Career
Per 9 Inningsverified
13
0.36
Jason Shiell
Careerverified
Per 9 Innings
3
0.67
Sean O'Sullivan
Career
Per 9 Innings
2
0.06
Jason Shiell
Careerverified
Per 9 Inningsverified
0
0
Sean O'Sullivan
Careerverified
Per 9 Innings
1464
40.71
Jason Shiell
Career
Per 9 Inningsverified
203
45.3
Sean O'Sullivan
Careerverified
Per 9 Innings
9
0.25
Jason Shiell
Career
Per 9 Inningsverified
6
1.34
Sean O'Sullivan
Career
Per 9 Inningsverified
226
6.28
Jason Shiell
Careerverified
Per 9 Innings
32
7.14
Sean O'Sullivan
Careerverified
Per 9 Inningsverified
6.28
6.28
Jason Shiell
Career
Per 9 Innings
7.14
7.14
Sean O'Sullivan
Career
Per 9 Inningsverified
11
0.31
Jason Shiell
Careerverified
Per 9 Innings
2
0.45
Sean O'Sullivan
Career
Per 9 Innings
19
0.53
Jason Shiell
Careerverified
Per 9 Inningsverified
1
0.22
Sean O'Sullivan
Careerverified
Per 9 Innings
32
0.89
Jason Shiell
Career
Per 9 Inningsverified
5
1.12
Sean O'Sullivan
Careerverified
Per 9 Inningsverified
1.585
1.585
Jason Shiell
Career
Per 9 Innings
2.033
2.033
Sean O'Sullivan
Careerverified
Per 9 Innings
1306
36.32
Jason Shiell
Career
Per 9 Inningsverified
168
37.49
Sean O'Sullivan
Career
Per 9 Innings
3.18
3.18
Jason Shiell
Careerverified
Per 9 Inningsverified
1.33
1.33
Sean O'Sullivan
Careerverified
Per 9 Inningsverified
0.311
0.311
Jason Shiell
Career
Per 9 Innings
0.364
0.364
Sean O'Sullivan
Career
Per 9 Innings
40.71
40.71
Jason Shiell
Careerverified
Per 9 Inningsverified
45.3
45.3

Fielding Stats for Sean O'Sullivan and Jason Shiell

Sean O'Sullivan
Careerverified
Per 9 Inningsverified
7
7
Jason Shiell
Career
Per 9 Innings
3
3
Sean O'Sullivan
Careerverified
Per 9 Innings
71
1.97
Jason Shiell
Career
Per 9 Inningsverified
24
5.36
Sean O'Sullivan
Careerverified
Per 9 Inningsverified
56
1.56
Jason Shiell
Career
Per 9 Innings
3
0.67
Sean O'Sullivan
Careerverified
Per 9 Innings
971
27
Jason Shiell
Career
Per 9 Innings
121
27
Sean O'Sullivan
Careerverified
Per 9 Innings
323.2
9
Jason Shiell
Career
Per 9 Innings
40.1
9
Sean O'Sullivan
Careerverified
Per 9 Innings
22
0.61
Jason Shiell
Career
Per 9 Inningsverified
4
0.89
Sean O'Sullivan
Careerverified
Per 9 Innings
31
0.86
Jason Shiell
Career
Per 9 Inningsverified
5
1.12
Sean O'Sullivan
Career
Per 9 Inningsverified
3
0.08
Jason Shiell
Careerverified
Per 9 Innings
2
0.45
Sean O'Sullivan
Careerverified
Per 9 Innings
56
1.56
Jason Shiell
Career
Per 9 Inningsverified
11
2.45
Sean O'Sullivan
Careerverified
Per 9 Innings
53
1.47
Jason Shiell
Career
Per 9 Inningsverified
9
2.01
Sean O'Sullivan
Careerverified
Per 9 Inningsverified
94.64
94.64
Jason Shiell
Career
Per 9 Innings
81.82
81.82
Sean O'Sullivan
Careerverified
Per 9 Inningsverified
0.747
0.747
Jason Shiell
Career
Per 9 Innings
0.375
0.375
Sean O'Sullivan
Careerverified
Per 9 Inningsverified
78.87
78.87
Jason Shiell
Career
Per 9 Innings
12.5
12.5
Sean O'Sullivan
Careerverified
Per 9 Inningsverified
2
0.06
Jason Shiell
Career
Per 9 Innings
0
0
Sean O'Sullivan
Career
Per 9 Innings
0
0
Jason Shiell
Career
Per 9 Innings
0
0
Sean O'Sullivan
Career
Per 9 Innings
0
0
Jason Shiell
Career
Per 9 Innings
0
0
Sean O'Sullivan
Career
Per 9 Innings
0
0
Jason Shiell
Career
Per 9 Innings
0
0
Sean O'Sullivan
Career
Per 9 Innings
0
0
Jason Shiell
Career
Per 9 Innings
0
0

Hitting Stats for Sean O'Sullivan and Jason Shiell

Sean O'Sullivan
Careerverified
Per 600 PAverified
7
7
Jason Shiell
Career
Per 600 PA
3
3
Sean O'Sullivan
Careerverified
Per 600 PA
71
1183.33
Jason Shiell
Career
Per 600 PAverified
24
2400
Sean O'Sullivan
Careerverified
Per 600 PA
36
600
Jason Shiell
Career
Per 600 PA
6
600
Sean O'Sullivan
Careerverified
Per 600 PAverified
33
550
Jason Shiell
Career
Per 600 PA
4
400
Sean O'Sullivan
Careerverified
Per 600 PAverified
0.121
0.121
Jason Shiell
Career
Per 600 PA
0
0
Sean O'Sullivan
Career
Per 600 PA
0.375
0.375
Jason Shiell
Careerverified
Per 600 PAverified
0.417
0.417
Sean O'Sullivan
Careerverified
Per 600 PAverified
4
66.67
Jason Shiell
Career
Per 600 PA
0
0
Sean O'Sullivan
Careerverified
Per 600 PAverified
2
33.33
Jason Shiell
Career
Per 600 PA
0
0
Sean O'Sullivan
Careerverified
Per 600 PAverified
2
33.33
Jason Shiell
Career
Per 600 PA
0
0
Sean O'Sullivan
Career
Per 600 PA
0
0
Jason Shiell
Career
Per 600 PA
0
0
Sean O'Sullivan
Career
Per 600 PA
0
0
Jason Shiell
Career
Per 600 PA
0
0
Sean O'Sullivan
Careerverified
Per 600 PAverified
2
33.33
Jason Shiell
Career
Per 600 PA
0
0
Sean O'Sullivan
Careerverified
Per 600 PAverified
0.5
0.5
Jason Shiell
Career
Per 600 PA
Sean O'Sullivan
Career
Per 600 PA
0
0
Jason Shiell
Career
Per 600 PA
0
0
Sean O'Sullivan
Career
Per 600 PA
0
0
Jason Shiell
Career
Per 600 PA
Sean O'Sullivan
Careerverified
Per 600 PAverified
0.94
15.66
Jason Shiell
Career
Per 600 PA
0.03
2.68
Sean O'Sullivan
Careerverified
Per 600 PAverified
6
100
Jason Shiell
Career
Per 600 PA
0
0
Sean O'Sullivan
Careerverified
Per 600 PA
5
83.33
Jason Shiell
Career
Per 600 PAverified
1
100
Sean O'Sullivan
Career
Per 600 PA
0.147
0.147
Jason Shiell
Careerverified
Per 600 PAverified
0.2
0.2
Sean O'Sullivan
Careerverified
Per 600 PAverified
0.182
0.182
Jason Shiell
Career
Per 600 PA
0
0
Sean O'Sullivan
Careerverified
Per 600 PAverified
0.329
0.329
Jason Shiell
Career
Per 600 PA
0.2
0.2
Sean O'Sullivan
Careerverified
Per 600 PAverified
0.061
0.061
Jason Shiell
Career
Per 600 PA
0
0
Sean O'Sullivan
Careerverified
Per 600 PAverified
0.112
0.112
Jason Shiell
Career
Per 600 PA
0.09
0.09
Sean O'Sullivan
Career
Per 600 PA
0.241
0.241
Jason Shiell
Careerverified
Per 600 PAverified
0.25
0.25
Sean O'Sullivan
Careerverified
Per 600 PAverified
0.25
0.25
Jason Shiell
Career
Per 600 PA
0
0
Sean O'Sullivan
Careerverified
Per 600 PAverified
3
50
Jason Shiell
Career
Per 600 PA
0
0
Sean O'Sullivan
Career
Per 600 PA
0
0
Jason Shiell
Career
Per 600 PA
0
0
Sean O'Sullivan
Careerverified
Per 600 PAverified
3
50
Jason Shiell
Career
Per 600 PA
0
0
Sean O'Sullivan
Career
Per 600 PAverified
-0.11
-1.78
Jason Shiell
Careerverified
Per 600 PA
-0.08
-7.79
Sean O'Sullivan
Career
Per 600 PA
0
0
Jason Shiell
Career
Per 600 PA
0
0
Sean O'Sullivan
Career
Per 600 PA
1
16.67
Jason Shiell
Career
Per 600 PAverified
1
100
Sean O'Sullivan
Career
Per 600 PA
0
0
Jason Shiell
Career
Per 600 PA
0
0
Sean O'Sullivan
Career
Per 600 PAverified
17
283.33
Jason Shiell
Careerverified
Per 600 PA
3
300
Sean O'Sullivan
Careerverified
Per 600 PAverified
2.12
2.12
Jason Shiell
Career
Per 600 PA
2
2
Sean O'Sullivan
Career
Per 600 PA
0.06
0.06
Jason Shiell
Careerverified
Per 600 PAverified
0.33
0.33
Sean O'Sullivan
Careerverified
Per 600 PA
2
33.33
Jason Shiell
Career
Per 600 PAverified
1
100
Sean O'Sullivan
Career
Per 600 PA
0
0
Jason Shiell
Career
Per 600 PA
0
0
Sean O'Sullivan
Career
Per 600 PA
0
0
Jason Shiell
Career
Per 600 PA
0
0
Sean O'Sullivan
Career
Per 600 PA
0
0
Jason Shiell
Career
Per 600 PA
0
0
Sean O'Sullivan
Career
Per 600 PA
0
0
Jason Shiell
Career
Per 600 PA
0
0
Sean O'Sullivan
Career
Per 600 PA
0
0
Jason Shiell
Career
Per 600 PA
0
0
Sean O'Sullivan
Career
Per 600 PA
Jason Shiell
Career
Per 600 PA