Jack Leiper vs. Jack Rowan — Career Comparison

Jack Leiper
Pre-GenerationalPennsylvaniaThrows LeftBats LeftNorth AmericaColumbus SolonsAmerican AssociationRelief Pitcher
Jack Rowan
Lost GenerationPennsylvaniaThrows RightBats RightNorth AmericaCincinnati RedsNational LeagueStarting Pitcher

Jack Rowan built a career as a starting pitcher and Jack Leiper as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jack Rowan posted stronger surface numbers — ERA 3.07 and WHIP 1.334 compared to 5.4 and 1.778 for Jack Leiper. By the career numbers, Jack Rowan had the better of this cross-role comparison — though era context would sharpen the verdict.

Pitching Stats for Jack Leiper and Jack Rowan

Jack Leiper
Career
Per 9 Innings
1
1
Jack Rowan
Careerverified
Per 9 Inningsverified
7
7
Jack Leiper
Career
Per 9 Innings
6
1.2
Jack Rowan
Careerverified
Per 9 Inningsverified
119
1.6
Jack Leiper
Career
Per 9 Inningsverified
5
1
Jack Rowan
Careerverified
Per 9 Innings
74
0.99
Jack Leiper
Career
Per 9 Innings
2
0.4
Jack Rowan
Careerverified
Per 9 Inningsverified
31
0.42
Jack Leiper
Careerverified
Per 9 Inningsverified
2
0.4
Jack Rowan
Career
Per 9 Innings
40
0.54
Jack Leiper
Careerverified
Per 9 Inningsverified
50
50
Jack Rowan
Career
Per 9 Innings
43.66
43.66
Jack Leiper
Careerverified
Per 9 Inningsverified
83.33
83.33
Jack Rowan
Career
Per 9 Innings
62.18
62.18
Jack Leiper
Career
Per 9 Inningsverified
4
0.8
Jack Rowan
Careerverified
Per 9 Innings
44
0.59
Jack Leiper
Career
Per 9 Innings
0
0
Jack Rowan
Careerverified
Per 9 Inningsverified
5
0.07
Jack Leiper
Career
Per 9 Innings
0
0
Jack Rowan
Careerverified
Per 9 Inningsverified
3
0.04
Jack Leiper
Careerverified
Per 9 Innings
27
5.4
Jack Rowan
Career
Per 9 Inningsverified
229
3.07
Jack Leiper
Career
Per 9 Innings
5.4
5.4
Jack Rowan
Careerverified
Per 9 Inningsverified
3.07
3.07
Jack Leiper
Career
Per 9 Innings
5.39
5.39
Jack Rowan
Careerverified
Per 9 Inningsverified
3.34
3.34
Jack Leiper
Career
Per 9 Innings
5.89
5.89
Jack Rowan
Careerverified
Per 9 Inningsverified
3.64
3.64
Jack Leiper
Careerverified
Per 9 Inningsverified
0.234
0.234
Jack Rowan
Career
Per 9 Innings
0.254
0.254
Jack Leiper
Career
Per 9 Innings
135
27
Jack Rowan
Careerverified
Per 9 Innings
2012
27
Jack Leiper
Career
Per 9 Innings
45
9
Jack Rowan
Careerverified
Per 9 Innings
670.2
9
Jack Leiper
Careerverified
Per 9 Inningsverified
41
8.2
Jack Rowan
Career
Per 9 Innings
623
8.36
Jack Leiper
Careerverified
Per 9 Inningsverified
8.2
8.2
Jack Rowan
Career
Per 9 Innings
8.36
8.36
Jack Leiper
Careerverified
Per 9 Innings
3
0.6
Jack Rowan
Career
Per 9 Inningsverified
8
0.11
Jack Leiper
Career
Per 9 Innings
0.6
0.6
Jack Rowan
Careerverified
Per 9 Inningsverified
0.11
0.11
Jack Leiper
Career
Per 9 Innings
0.5
0.5
Jack Rowan
Careerverified
Per 9 Inningsverified
0.07
0.07
Jack Leiper
Careerverified
Per 9 Innings
39
7.8
Jack Rowan
Career
Per 9 Inningsverified
272
3.65
Jack Leiper
Career
Per 9 Innings
0
0
Jack Rowan
Career
Per 9 Innings
0
0
Jack Leiper
Career
Per 9 Innings
7.8
7.8
Jack Rowan
Careerverified
Per 9 Inningsverified
3.65
3.65
Jack Leiper
Career
Per 9 Inningsverified
19
3.8
Jack Rowan
Careerverified
Per 9 Innings
267
3.58
Jack Leiper
Careerverified
Per 9 Inningsverified
3.8
3.8
Jack Rowan
Career
Per 9 Innings
3.58
3.58
Jack Leiper
Careerverified
Per 9 Inningsverified
3.17
3.17
Jack Rowan
Career
Per 9 Innings
2.24
2.24
Jack Leiper
Careerverified
Per 9 Inningsverified
1.289
1.289
Jack Rowan
Career
Per 9 Innings
0.804
0.804
Jack Leiper
Careerverified
Per 9 Innings
3
0.6
Jack Rowan
Career
Per 9 Inningsverified
12
0.16
Jack Leiper
Careerverified
Per 9 Innings
4
0.8
Jack Rowan
Career
Per 9 Inningsverified
15
0.2
Jack Leiper
Careerverified
Per 9 Inningsverified
0
0
Jack Rowan
Career
Per 9 Innings
2
0.03
Jack Leiper
Career
Per 9 Inningsverified
218
43.6
Jack Rowan
Careerverified
Per 9 Innings
2742
36.8
Jack Leiper
Career
Per 9 Innings
1
0.2
Jack Rowan
Careerverified
Per 9 Inningsverified
35
0.47
Jack Leiper
Careerverified
Per 9 Innings
43
8.6
Jack Rowan
Career
Per 9 Inningsverified
313
4.2
Jack Leiper
Career
Per 9 Innings
8.6
8.6
Jack Rowan
Careerverified
Per 9 Inningsverified
4.2
4.2
Jack Leiper
Career
Per 9 Innings
0
0
Jack Rowan
Career
Per 9 Innings
0
0
Jack Leiper
Career
Per 9 Innings
0
0
Jack Rowan
Career
Per 9 Innings
0
0
Jack Leiper
Career
Per 9 Innings
0
0
Jack Rowan
Career
Per 9 Innings
0
0
Jack Leiper
Career
Per 9 Innings
1.778
1.778
Jack Rowan
Careerverified
Per 9 Inningsverified
1.335
1.335
Jack Leiper
Career
Per 9 Inningsverified
175
35
Jack Rowan
Careerverified
Per 9 Innings
2455
32.94
Jack Leiper
Career
Per 9 Innings
7.17
7.17
Jack Rowan
Careerverified
Per 9 Inningsverified
2.63
2.63
Jack Leiper
Careerverified
Per 9 Inningsverified
0.248
0.248
Jack Rowan
Career
Per 9 Innings
0.282
0.282
Jack Leiper
Careerverified
Per 9 Inningsverified
43.6
43.6
Jack Rowan
Career
Per 9 Innings
36.8
36.8

Fielding Stats for Jack Leiper and Jack Rowan

Jack Leiper
Career
Per 9 Innings
1
1
Jack Rowan
Careerverified
Per 9 Inningsverified
7
7
Jack Leiper
Career
Per 9 Innings
7
1.26
Jack Rowan
Careerverified
Per 9 Inningsverified
119
1.97
Jack Leiper
Career
Per 9 Innings
0
0
Jack Rowan
Careerverified
Per 9 Inningsverified
61
1.01
Jack Leiper
Career
Per 9 Innings
150
27
Jack Rowan
Careerverified
Per 9 Innings
1635
27
Jack Leiper
Career
Per 9 Innings
50
9
Jack Rowan
Careerverified
Per 9 Innings
545
9
Jack Leiper
Career
Per 9 Inningsverified
4
0.72
Jack Rowan
Careerverified
Per 9 Innings
12
0.2
Jack Leiper
Career
Per 9 Innings
8
1.44
Jack Rowan
Careerverified
Per 9 Inningsverified
148
2.44
Jack Leiper
Careerverified
Per 9 Innings
3
0.54
Jack Rowan
Career
Per 9 Inningsverified
11
0.18
Jack Leiper
Career
Per 9 Innings
15
2.7
Jack Rowan
Careerverified
Per 9 Inningsverified
171
2.82
Jack Leiper
Career
Per 9 Innings
12
2.16
Jack Rowan
Careerverified
Per 9 Inningsverified
160
2.64
Jack Leiper
Career
Per 9 Innings
80
80
Jack Rowan
Careerverified
Per 9 Inningsverified
93.57
93.57
Jack Leiper
Careerverified
Per 9 Inningsverified
1.714
1.714
Jack Rowan
Career
Per 9 Innings
1.345
1.345
Jack Leiper
Career
Per 9 Innings
0
0
Jack Rowan
Careerverified
Per 9 Inningsverified
51.26
51.26
Jack Leiper
Career
Per 9 Inningsverified
1
0.18
Jack Rowan
Careerverified
Per 9 Innings
4
0.07
Jack Leiper
Career
Per 9 Innings
0
0
Jack Rowan
Career
Per 9 Innings
0
0
Jack Leiper
Career
Per 9 Innings
0
0
Jack Rowan
Career
Per 9 Innings
0
0
Jack Leiper
Career
Per 9 Innings
0
0
Jack Rowan
Career
Per 9 Innings
0
0
Jack Leiper
Career
Per 9 Innings
0
0
Jack Rowan
Career
Per 9 Innings
0
0

Hitting Stats for Jack Leiper and Jack Rowan

Jack Leiper
Career
Per 600 PA
1
1
Jack Rowan
Careerverified
Per 600 PAverified
7
7
Jack Leiper
Career
Per 600 PA
6
171.43
Jack Rowan
Careerverified
Per 600 PAverified
119
310.43
Jack Leiper
Career
Per 600 PA
21
600
Jack Rowan
Careerverified
Per 600 PA
230
600
Jack Leiper
Career
Per 600 PAverified
21
600
Jack Rowan
Careerverified
Per 600 PA
199
519.13
Jack Leiper
Career
Per 600 PA
0.143
0.143
Jack Rowan
Careerverified
Per 600 PAverified
0.151
0.151
Jack Leiper
Career
Per 600 PA
0.286
0.286
Jack Rowan
Careerverified
Per 600 PAverified
0.479
0.479
Jack Leiper
Career
Per 600 PAverified
3
85.71
Jack Rowan
Careerverified
Per 600 PA
30
78.26
Jack Leiper
Career
Per 600 PAverified
3
85.71
Jack Rowan
Careerverified
Per 600 PA
27
70.43
Jack Leiper
Career
Per 600 PA
0
0
Jack Rowan
Careerverified
Per 600 PAverified
1
2.61
Jack Leiper
Career
Per 600 PA
0
0
Jack Rowan
Careerverified
Per 600 PAverified
2
5.22
Jack Leiper
Career
Per 600 PA
0
0
Jack Rowan
Career
Per 600 PA
0
0
Jack Leiper
Career
Per 600 PA
0
0
Jack Rowan
Careerverified
Per 600 PAverified
3
7.83
Jack Leiper
Career
Per 600 PA
0
0
Jack Rowan
Careerverified
Per 600 PAverified
0.1
0.1
Jack Leiper
Career
Per 600 PA
0
0
Jack Rowan
Career
Per 600 PA
0
0
Jack Leiper
Career
Per 600 PA
0
0
Jack Rowan
Career
Per 600 PA
0
0
Jack Leiper
Career
Per 600 PA
0.38
10.96
Jack Rowan
Careerverified
Per 600 PAverified
10.28
26.81
Jack Leiper
Career
Per 600 PA
3
85.71
Jack Rowan
Careerverified
Per 600 PAverified
35
91.3
Jack Leiper
Career
Per 600 PA
3
85.71
Jack Rowan
Careerverified
Per 600 PAverified
55
143.48
Jack Leiper
Career
Per 600 PA
0.143
0.143
Jack Rowan
Careerverified
Per 600 PAverified
0.246
0.246
Jack Leiper
Career
Per 600 PA
0.143
0.143
Jack Rowan
Careerverified
Per 600 PAverified
0.176
0.176
Jack Leiper
Career
Per 600 PA
0.286
0.286
Jack Rowan
Careerverified
Per 600 PAverified
0.421
0.421
Jack Leiper
Career
Per 600 PA
0
0
Jack Rowan
Careerverified
Per 600 PAverified
0.025
0.025
Jack Leiper
Career
Per 600 PA
0.1
0.1
Jack Rowan
Careerverified
Per 600 PAverified
0.155
0.155
Jack Leiper
Career
Per 600 PA
0.167
0.167
Jack Rowan
Careerverified
Per 600 PAverified
0.367
0.367
Jack Leiper
Career
Per 600 PA
0.2
0.2
Jack Rowan
Careerverified
Per 600 PAverified
0.244
0.244
Jack Leiper
Career
Per 600 PAverified
2
57.14
Jack Rowan
Careerverified
Per 600 PA
9
23.48
Jack Leiper
Career
Per 600 PAverified
3
85.71
Jack Rowan
Careerverified
Per 600 PA
13
33.91
Jack Leiper
Career
Per 600 PAverified
5
142.86
Jack Rowan
Careerverified
Per 600 PA
22
57.39
Jack Leiper
Career
Per 600 PA
-0.11
-3.09
Jack Rowan
Careerverified
Per 600 PAverified
9.89
25.79
Jack Leiper
Career
Per 600 PA
0
0
Jack Rowan
Careerverified
Per 600 PAverified
1
2.61
Jack Leiper
Career
Per 600 PA
0
0
Jack Rowan
Careerverified
Per 600 PAverified
24
62.61
Jack Leiper
Career
Per 600 PA
0
0
Jack Rowan
Career
Per 600 PA
0
0
Jack Leiper
Careerverified
Per 600 PAverified
6
171.43
Jack Rowan
Career
Per 600 PA
76
198.26
Jack Leiper
Careerverified
Per 600 PAverified
3.5
3.5
Jack Rowan
Career
Per 600 PA
3.03
3.03
Jack Leiper
Career
Per 600 PA
0
0
Jack Rowan
Careerverified
Per 600 PAverified
0.32
0.32
Jack Leiper
Career
Per 600 PA
0
0
Jack Rowan
Careerverified
Per 600 PAverified
6
15.65
Jack Leiper
Career
Per 600 PA
0
0
Jack Rowan
Career
Per 600 PA
0
0
Jack Leiper
Career
Per 600 PA
0
0
Jack Rowan
Career
Per 600 PA
0
0
Jack Leiper
Career
Per 600 PA
0
0
Jack Rowan
Careerverified
Per 600 PAverified
2
5.22
Jack Leiper
Career
Per 600 PA
0
0
Jack Rowan
Career
Per 600 PA
0
0
Jack Leiper
Career
Per 600 PA
0
0
Jack Rowan
Careerverified
Per 600 PAverified
2
5.22
Jack Leiper
Career
Per 600 PA
Jack Rowan
Careerverified
Per 600 PAverified
100
100