Kid Nichols vs. Sean O'Sullivan — Career Comparison

Kid Nichols
Pre-GenerationalWisconsinThrows RightBats SwitchNorth AmericaBoston BravesNational LeagueHall of FameRelief Pitcher
Sean O'Sullivan
MillenialCaliforniaThrows RightBats RightNorth AmericaKansas City RoyalsAmerican LeagueStarting Pitcher

Sean O'Sullivan built a career as a starting pitcher and Kid Nichols as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Kid Nichols posted stronger surface numbers — ERA 2.96 and WHIP 1.224 compared to 6.01 and 1.616 for Sean O'Sullivan. By the career numbers, Kid Nichols had the better of this cross-role comparison — though era context would sharpen the verdict.

Pitching Stats for Kid Nichols and Sean O'Sullivan

Kid Nichols
Careerverified
Per 9 Inningsverified
15
15
Sean O'Sullivan
Career
Per 9 Innings
7
7
Kid Nichols
Careerverified
Per 9 Innings
621
1.1
Sean O'Sullivan
Career
Per 9 Inningsverified
71
1.97
Kid Nichols
Careerverified
Per 9 Innings
562
1
Sean O'Sullivan
Career
Per 9 Inningsverified
56
1.56
Kid Nichols
Careerverified
Per 9 Inningsverified
362
0.64
Sean O'Sullivan
Career
Per 9 Innings
13
0.36
Kid Nichols
Career
Per 9 Inningsverified
208
0.37
Sean O'Sullivan
Careerverified
Per 9 Innings
23
0.64
Kid Nichols
Careerverified
Per 9 Inningsverified
63.51
63.51
Sean O'Sullivan
Career
Per 9 Innings
36.11
36.11
Kid Nichols
Careerverified
Per 9 Inningsverified
90.5
90.5
Sean O'Sullivan
Career
Per 9 Innings
78.87
78.87
Kid Nichols
Careerverified
Per 9 Inningsverified
532
0.94
Sean O'Sullivan
Career
Per 9 Innings
0
0
Kid Nichols
Careerverified
Per 9 Inningsverified
48
0.09
Sean O'Sullivan
Career
Per 9 Innings
0
0
Kid Nichols
Careerverified
Per 9 Inningsverified
16
0.03
Sean O'Sullivan
Career
Per 9 Innings
0
0
Kid Nichols
Career
Per 9 Inningsverified
1664
2.96
Sean O'Sullivan
Careerverified
Per 9 Innings
216
6.01
Kid Nichols
Careerverified
Per 9 Inningsverified
2.96
2.96
Sean O'Sullivan
Career
Per 9 Innings
6.01
6.01
Kid Nichols
Careerverified
Per 9 Inningsverified
3
3
Sean O'Sullivan
Career
Per 9 Innings
5.98
5.98
Kid Nichols
Careerverified
Per 9 Inningsverified
3.49
3.49
Sean O'Sullivan
Career
Per 9 Innings
5.58
5.58
Kid Nichols
Careerverified
Per 9 Inningsverified
0.25
0.25
Sean O'Sullivan
Career
Per 9 Innings
0.305
0.305
Kid Nichols
Careerverified
Per 9 Innings
15202
27
Sean O'Sullivan
Career
Per 9 Innings
971
27
Kid Nichols
Careerverified
Per 9 Innings
5067.1
9
Sean O'Sullivan
Career
Per 9 Innings
323.2
9
Kid Nichols
Career
Per 9 Inningsverified
4929
8.75
Sean O'Sullivan
Careerverified
Per 9 Innings
398
11.07
Kid Nichols
Careerverified
Per 9 Inningsverified
8.75
8.75
Sean O'Sullivan
Career
Per 9 Innings
11.07
11.07
Kid Nichols
Career
Per 9 Inningsverified
156
0.28
Sean O'Sullivan
Careerverified
Per 9 Innings
59
1.64
Kid Nichols
Careerverified
Per 9 Inningsverified
0.28
0.28
Sean O'Sullivan
Career
Per 9 Innings
1.64
1.64
Kid Nichols
Careerverified
Per 9 Inningsverified
0.25
0.25
Sean O'Sullivan
Career
Per 9 Innings
0.83
0.83
Kid Nichols
Career
Per 9 Inningsverified
1272
2.26
Sean O'Sullivan
Careerverified
Per 9 Innings
115
3.2
Kid Nichols
Careerverified
Per 9 Inningsverified
0
0
Sean O'Sullivan
Career
Per 9 Innings
10
0.28
Kid Nichols
Careerverified
Per 9 Inningsverified
2.26
2.26
Sean O'Sullivan
Career
Per 9 Innings
3.2
3.2
Kid Nichols
Careerverified
Per 9 Innings
1881
3.34
Sean O'Sullivan
Career
Per 9 Inningsverified
158
4.39
Kid Nichols
Career
Per 9 Innings
3.34
3.34
Sean O'Sullivan
Careerverified
Per 9 Inningsverified
4.39
4.39
Kid Nichols
Careerverified
Per 9 Inningsverified
3.03
3.03
Sean O'Sullivan
Career
Per 9 Innings
2.23
2.23
Kid Nichols
Career
Per 9 Innings
0.622
0.622
Sean O'Sullivan
Careerverified
Per 9 Inningsverified
0.844
0.844
Kid Nichols
Career
Per 9 Inningsverified
169
0.3
Sean O'Sullivan
Careerverified
Per 9 Innings
13
0.36
Kid Nichols
Career
Per 9 Inningsverified
129
0.23
Sean O'Sullivan
Careerverified
Per 9 Innings
13
0.36
Kid Nichols
Careerverified
Per 9 Inningsverified
1
0
Sean O'Sullivan
Career
Per 9 Innings
2
0.06
Kid Nichols
Careerverified
Per 9 Innings
21082
37.44
Sean O'Sullivan
Career
Per 9 Inningsverified
1464
40.71
Kid Nichols
Careerverified
Per 9 Innings
56
0.1
Sean O'Sullivan
Career
Per 9 Inningsverified
9
0.25
Kid Nichols
Career
Per 9 Inningsverified
2480
4.4
Sean O'Sullivan
Careerverified
Per 9 Innings
226
6.28
Kid Nichols
Careerverified
Per 9 Inningsverified
4.4
4.4
Sean O'Sullivan
Career
Per 9 Innings
6.28
6.28
Kid Nichols
Careerverified
Per 9 Inningsverified
0
0
Sean O'Sullivan
Career
Per 9 Innings
11
0.31
Kid Nichols
Careerverified
Per 9 Inningsverified
0
0
Sean O'Sullivan
Career
Per 9 Innings
19
0.53
Kid Nichols
Career
Per 9 Innings
0
0
Sean O'Sullivan
Careerverified
Per 9 Inningsverified
32
0.89
Kid Nichols
Careerverified
Per 9 Inningsverified
1.224
1.224
Sean O'Sullivan
Career
Per 9 Innings
1.585
1.585
Kid Nichols
Careerverified
Per 9 Innings
19681
34.96
Sean O'Sullivan
Career
Per 9 Inningsverified
1306
36.32
Kid Nichols
Career
Per 9 Innings
3.99
3.99
Sean O'Sullivan
Careerverified
Per 9 Inningsverified
3.18
3.18
Kid Nichols
Careerverified
Per 9 Inningsverified
0.271
0.271
Sean O'Sullivan
Career
Per 9 Innings
0.311
0.311
Kid Nichols
Career
Per 9 Innings
37.44
37.44
Sean O'Sullivan
Careerverified
Per 9 Inningsverified
40.71
40.71

Fielding Stats for Kid Nichols and Sean O'Sullivan

Kid Nichols
Careerverified
Per 9 Inningsverified
15
15
Sean O'Sullivan
Career
Per 9 Innings
7
7
Kid Nichols
Careerverified
Per 9 Innings
647
1.11
Sean O'Sullivan
Career
Per 9 Inningsverified
71
1.97
Kid Nichols
Careerverified
Per 9 Innings
60
0.1
Sean O'Sullivan
Career
Per 9 Inningsverified
56
1.56
Kid Nichols
Careerverified
Per 9 Innings
15753
27
Sean O'Sullivan
Career
Per 9 Innings
971
27
Kid Nichols
Careerverified
Per 9 Innings
5251
9
Sean O'Sullivan
Career
Per 9 Innings
323.2
9
Kid Nichols
Careerverified
Per 9 Inningsverified
384
0.66
Sean O'Sullivan
Career
Per 9 Innings
22
0.61
Kid Nichols
Careerverified
Per 9 Inningsverified
1034
1.77
Sean O'Sullivan
Career
Per 9 Innings
31
0.86
Kid Nichols
Career
Per 9 Innings
79
0.14
Sean O'Sullivan
Careerverified
Per 9 Inningsverified
3
0.08
Kid Nichols
Careerverified
Per 9 Inningsverified
1497
2.57
Sean O'Sullivan
Career
Per 9 Innings
56
1.56
Kid Nichols
Careerverified
Per 9 Inningsverified
1418
2.43
Sean O'Sullivan
Career
Per 9 Innings
53
1.47
Kid Nichols
Careerverified
Per 9 Inningsverified
94.72
94.72
Sean O'Sullivan
Career
Per 9 Innings
94.64
94.64
Kid Nichols
Careerverified
Per 9 Inningsverified
2.192
2.192
Sean O'Sullivan
Career
Per 9 Innings
0.747
0.747
Kid Nichols
Career
Per 9 Innings
9.27
9.27
Sean O'Sullivan
Careerverified
Per 9 Inningsverified
78.87
78.87
Kid Nichols
Careerverified
Per 9 Innings
37
0.06
Sean O'Sullivan
Career
Per 9 Innings
2
0.06
Kid Nichols
Career
Per 9 Innings
0
0
Sean O'Sullivan
Career
Per 9 Innings
0
0
Kid Nichols
Career
Per 9 Innings
0
0
Sean O'Sullivan
Career
Per 9 Innings
0
0
Kid Nichols
Career
Per 9 Innings
0
0
Sean O'Sullivan
Career
Per 9 Innings
0
0
Kid Nichols
Career
Per 9 Innings
0
0
Sean O'Sullivan
Career
Per 9 Innings
0
0

Hitting Stats for Kid Nichols and Sean O'Sullivan

Kid Nichols
Careerverified
Per 600 PAverified
15
15
Sean O'Sullivan
Career
Per 600 PA
7
7
Kid Nichols
Careerverified
Per 600 PA
650
172.26
Sean O'Sullivan
Career
Per 600 PAverified
71
1183.33
Kid Nichols
Careerverified
Per 600 PA
2264
600
Sean O'Sullivan
Career
Per 600 PA
36
600
Kid Nichols
Careerverified
Per 600 PAverified
2090
553.89
Sean O'Sullivan
Career
Per 600 PA
33
550
Kid Nichols
Careerverified
Per 600 PAverified
0.226
0.226
Sean O'Sullivan
Career
Per 600 PA
0.121
0.121
Kid Nichols
Careerverified
Per 600 PAverified
0.602
0.602
Sean O'Sullivan
Career
Per 600 PA
0.375
0.375
Kid Nichols
Careerverified
Per 600 PAverified
472
125.09
Sean O'Sullivan
Career
Per 600 PA
4
66.67
Kid Nichols
Careerverified
Per 600 PAverified
374
99.12
Sean O'Sullivan
Career
Per 600 PA
2
33.33
Kid Nichols
Careerverified
Per 600 PA
58
15.37
Sean O'Sullivan
Career
Per 600 PAverified
2
33.33
Kid Nichols
Careerverified
Per 600 PAverified
24
6.36
Sean O'Sullivan
Career
Per 600 PA
0
0
Kid Nichols
Careerverified
Per 600 PAverified
16
4.24
Sean O'Sullivan
Career
Per 600 PA
0
0
Kid Nichols
Careerverified
Per 600 PA
98
25.97
Sean O'Sullivan
Career
Per 600 PAverified
2
33.33
Kid Nichols
Career
Per 600 PA
0.208
0.208
Sean O'Sullivan
Careerverified
Per 600 PAverified
0.5
0.5
Kid Nichols
Careerverified
Per 600 PAverified
0.008
0.008
Sean O'Sullivan
Career
Per 600 PA
0
0
Kid Nichols
Careerverified
Per 600 PAverified
0.034
0.034
Sean O'Sullivan
Career
Per 600 PA
0
0
Kid Nichols
Careerverified
Per 600 PAverified
186.5
49.43
Sean O'Sullivan
Career
Per 600 PA
0.94
15.66
Kid Nichols
Careerverified
Per 600 PAverified
626
165.9
Sean O'Sullivan
Career
Per 600 PA
6
100
Kid Nichols
Careerverified
Per 600 PAverified
621
164.58
Sean O'Sullivan
Career
Per 600 PA
5
83.33
Kid Nichols
Careerverified
Per 600 PAverified
0.277
0.277
Sean O'Sullivan
Career
Per 600 PA
0.147
0.147
Kid Nichols
Careerverified
Per 600 PAverified
0.3
0.3
Sean O'Sullivan
Career
Per 600 PA
0.182
0.182
Kid Nichols
Careerverified
Per 600 PAverified
0.577
0.577
Sean O'Sullivan
Career
Per 600 PA
0.329
0.329
Kid Nichols
Careerverified
Per 600 PAverified
0.074
0.074
Sean O'Sullivan
Career
Per 600 PA
0.061
0.061
Kid Nichols
Careerverified
Per 600 PAverified
0.2
0.2
Sean O'Sullivan
Career
Per 600 PA
0.112
0.112
Kid Nichols
Careerverified
Per 600 PAverified
0.491
0.491
Sean O'Sullivan
Career
Per 600 PA
0.241
0.241
Kid Nichols
Careerverified
Per 600 PAverified
0.263
0.263
Sean O'Sullivan
Career
Per 600 PA
0.25
0.25
Kid Nichols
Careerverified
Per 600 PAverified
273
72.35
Sean O'Sullivan
Career
Per 600 PA
3
50
Kid Nichols
Careerverified
Per 600 PAverified
278
73.67
Sean O'Sullivan
Career
Per 600 PA
0
0
Kid Nichols
Careerverified
Per 600 PAverified
535
141.78
Sean O'Sullivan
Career
Per 600 PA
3
50
Kid Nichols
Careerverified
Per 600 PAverified
203.11
53.83
Sean O'Sullivan
Career
Per 600 PA
-0.11
-1.78
Kid Nichols
Careerverified
Per 600 PAverified
12
3.18
Sean O'Sullivan
Career
Per 600 PA
0
0
Kid Nichols
Careerverified
Per 600 PAverified
137
36.31
Sean O'Sullivan
Career
Per 600 PA
1
16.67
Kid Nichols
Career
Per 600 PA
0
0
Sean O'Sullivan
Career
Per 600 PA
0
0
Kid Nichols
Career
Per 600 PAverified
343
90.9
Sean O'Sullivan
Careerverified
Per 600 PA
17
283.33
Kid Nichols
Careerverified
Per 600 PAverified
6.6
6.6
Sean O'Sullivan
Career
Per 600 PA
2.12
2.12
Kid Nichols
Careerverified
Per 600 PAverified
0.4
0.4
Sean O'Sullivan
Career
Per 600 PA
0.06
0.06
Kid Nichols
Careerverified
Per 600 PA
25
6.63
Sean O'Sullivan
Career
Per 600 PAverified
2
33.33
Kid Nichols
Career
Per 600 PA
0
0
Sean O'Sullivan
Career
Per 600 PA
0
0
Kid Nichols
Career
Per 600 PA
0
0
Sean O'Sullivan
Career
Per 600 PA
0
0
Kid Nichols
Careerverified
Per 600 PAverified
19
5.04
Sean O'Sullivan
Career
Per 600 PA
0
0
Kid Nichols
Career
Per 600 PA
0
0
Sean O'Sullivan
Career
Per 600 PA
0
0
Kid Nichols
Careerverified
Per 600 PAverified
19
5.04
Sean O'Sullivan
Career
Per 600 PA
0
0
Kid Nichols
Careerverified
Per 600 PAverified
100
100
Sean O'Sullivan
Career
Per 600 PA