Jack Leiper vs. John Roper — Career Comparison

Jack Leiper
Pre-GenerationalPennsylvaniaThrows LeftBats LeftNorth AmericaColumbus SolonsAmerican AssociationRelief Pitcher
John Roper
Gen XNorth CarolinaThrows RightBats RightNorth AmericaCincinnati RedsNational LeagueStarting Pitcher

John Roper 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. John Roper posted stronger surface numbers — ERA 5.35 and WHIP 1.511 compared to 5.4 and 1.778 for Jack Leiper. By the career numbers, John Roper had the better of this cross-role comparison — though era context would sharpen the verdict.

Pitching Stats for Jack Leiper and John Roper

Jack Leiper
Career
Per 9 Innings
1
1
John Roper
Careerverified
Per 9 Inningsverified
3
3
Jack Leiper
Career
Per 9 Innings
6
1.2
John Roper
Careerverified
Per 9 Inningsverified
35
1.75
Jack Leiper
Career
Per 9 Innings
5
1
John Roper
Careerverified
Per 9 Inningsverified
32
1.6
Jack Leiper
Career
Per 9 Innings
2
0.4
John Roper
Careerverified
Per 9 Innings
8
0.4
Jack Leiper
Careerverified
Per 9 Innings
2
0.4
John Roper
Career
Per 9 Inningsverified
7
0.35
Jack Leiper
Career
Per 9 Innings
50
50
John Roper
Careerverified
Per 9 Inningsverified
53.33
53.33
Jack Leiper
Career
Per 9 Innings
83.33
83.33
John Roper
Careerverified
Per 9 Inningsverified
91.43
91.43
Jack Leiper
Careerverified
Per 9 Inningsverified
4
0.8
John Roper
Career
Per 9 Innings
0
0
Jack Leiper
Career
Per 9 Innings
0
0
John Roper
Career
Per 9 Innings
0
0
Jack Leiper
Career
Per 9 Innings
0
0
John Roper
Career
Per 9 Innings
0
0
Jack Leiper
Careerverified
Per 9 Innings
27
5.4
John Roper
Career
Per 9 Inningsverified
107
5.35
Jack Leiper
Career
Per 9 Innings
5.4
5.4
John Roper
Careerverified
Per 9 Inningsverified
5.35
5.35
Jack Leiper
Career
Per 9 Innings
5.39
5.39
John Roper
Careerverified
Per 9 Inningsverified
5.27
5.27
Jack Leiper
Career
Per 9 Innings
5.89
5.89
John Roper
Careerverified
Per 9 Inningsverified
5.19
5.19
Jack Leiper
Careerverified
Per 9 Inningsverified
0.234
0.234
John Roper
Career
Per 9 Innings
0.281
0.281
Jack Leiper
Career
Per 9 Innings
135
27
John Roper
Careerverified
Per 9 Innings
540
27
Jack Leiper
Career
Per 9 Innings
45
9
John Roper
Careerverified
Per 9 Innings
180
9
Jack Leiper
Careerverified
Per 9 Inningsverified
41
8.2
John Roper
Career
Per 9 Innings
197
9.85
Jack Leiper
Careerverified
Per 9 Inningsverified
8.2
8.2
John Roper
Career
Per 9 Innings
9.85
9.85
Jack Leiper
Careerverified
Per 9 Inningsverified
3
0.6
John Roper
Career
Per 9 Innings
29
1.45
Jack Leiper
Careerverified
Per 9 Inningsverified
0.6
0.6
John Roper
Career
Per 9 Innings
1.45
1.45
Jack Leiper
Careerverified
Per 9 Inningsverified
0.5
0.5
John Roper
Career
Per 9 Innings
0.83
0.83
Jack Leiper
Careerverified
Per 9 Innings
39
7.8
John Roper
Career
Per 9 Inningsverified
72
3.6
Jack Leiper
Careerverified
Per 9 Inningsverified
0
0
John Roper
Career
Per 9 Innings
3
0.15
Jack Leiper
Career
Per 9 Innings
7.8
7.8
John Roper
Careerverified
Per 9 Inningsverified
3.6
3.6
Jack Leiper
Career
Per 9 Innings
19
3.8
John Roper
Careerverified
Per 9 Inningsverified
111
5.55
Jack Leiper
Career
Per 9 Innings
3.8
3.8
John Roper
Careerverified
Per 9 Inningsverified
5.55
5.55
Jack Leiper
Career
Per 9 Innings
3.17
3.17
John Roper
Career
Per 9 Innings
3.17
3.17
Jack Leiper
Careerverified
Per 9 Inningsverified
1.289
1.289
John Roper
Career
Per 9 Innings
1.017
1.017
Jack Leiper
Careerverified
Per 9 Innings
3
0.6
John Roper
Career
Per 9 Inningsverified
9
0.45
Jack Leiper
Careerverified
Per 9 Innings
4
0.8
John Roper
Career
Per 9 Inningsverified
8
0.4
Jack Leiper
Careerverified
Per 9 Inningsverified
0
0
John Roper
Career
Per 9 Innings
3
0.15
Jack Leiper
Career
Per 9 Inningsverified
218
43.6
John Roper
Careerverified
Per 9 Innings
794
39.7
Jack Leiper
Careerverified
Per 9 Inningsverified
1
0.2
John Roper
Career
Per 9 Innings
0
0
Jack Leiper
Careerverified
Per 9 Innings
43
8.6
John Roper
Career
Per 9 Inningsverified
112
5.6
Jack Leiper
Career
Per 9 Innings
8.6
8.6
John Roper
Careerverified
Per 9 Inningsverified
5.6
5.6
Jack Leiper
Careerverified
Per 9 Inningsverified
0
0
John Roper
Career
Per 9 Innings
6
0.3
Jack Leiper
Careerverified
Per 9 Inningsverified
0
0
John Roper
Career
Per 9 Innings
7
0.35
Jack Leiper
Career
Per 9 Innings
0
0
John Roper
Careerverified
Per 9 Inningsverified
19
0.95
Jack Leiper
Career
Per 9 Innings
1.778
1.778
John Roper
Careerverified
Per 9 Inningsverified
1.494
1.494
Jack Leiper
Career
Per 9 Innings
175
35
John Roper
Careerverified
Per 9 Inningsverified
701
35.05
Jack Leiper
Career
Per 9 Innings
7.17
7.17
John Roper
Careerverified
Per 9 Inningsverified
3.2
3.2
Jack Leiper
Careerverified
Per 9 Inningsverified
0.248
0.248
John Roper
Career
Per 9 Innings
0.3
0.3
Jack Leiper
Careerverified
Per 9 Inningsverified
43.6
43.6
John Roper
Career
Per 9 Innings
39.7
39.7

Fielding Stats for Jack Leiper and John Roper

Jack Leiper
Career
Per 9 Innings
1
1
John Roper
Careerverified
Per 9 Inningsverified
3
3
Jack Leiper
Career
Per 9 Innings
7
1.26
John Roper
Careerverified
Per 9 Inningsverified
35
1.75
Jack Leiper
Career
Per 9 Innings
0
0
John Roper
Careerverified
Per 9 Inningsverified
32
1.6
Jack Leiper
Career
Per 9 Innings
150
27
John Roper
Careerverified
Per 9 Innings
540
27
Jack Leiper
Career
Per 9 Innings
50
9
John Roper
Careerverified
Per 9 Innings
180
9
Jack Leiper
Career
Per 9 Inningsverified
4
0.72
John Roper
Careerverified
Per 9 Innings
12
0.6
Jack Leiper
Career
Per 9 Inningsverified
8
1.44
John Roper
Careerverified
Per 9 Innings
22
1.1
Jack Leiper
Career
Per 9 Innings
3
0.54
John Roper
Careerverified
Per 9 Inningsverified
2
0.1
Jack Leiper
Career
Per 9 Inningsverified
15
2.7
John Roper
Careerverified
Per 9 Innings
36
1.8
Jack Leiper
Career
Per 9 Inningsverified
12
2.16
John Roper
Careerverified
Per 9 Innings
34
1.7
Jack Leiper
Career
Per 9 Innings
80
80
John Roper
Careerverified
Per 9 Inningsverified
94.44
94.44
Jack Leiper
Careerverified
Per 9 Inningsverified
1.714
1.714
John Roper
Career
Per 9 Innings
0.971
0.971
Jack Leiper
Career
Per 9 Innings
0
0
John Roper
Careerverified
Per 9 Inningsverified
91.43
91.43
Jack Leiper
Career
Per 9 Inningsverified
1
0.18
John Roper
Careerverified
Per 9 Innings
2
0.1
Jack Leiper
Career
Per 9 Innings
0
0
John Roper
Career
Per 9 Innings
0
0
Jack Leiper
Career
Per 9 Innings
0
0
John Roper
Career
Per 9 Innings
0
0
Jack Leiper
Career
Per 9 Innings
0
0
John Roper
Career
Per 9 Innings
0
0
Jack Leiper
Career
Per 9 Innings
0
0
John Roper
Career
Per 9 Innings
0
0

Hitting Stats for Jack Leiper and John Roper

Jack Leiper
Career
Per 600 PA
1
1
John Roper
Careerverified
Per 600 PAverified
3
3
Jack Leiper
Career
Per 600 PA
6
171.43
John Roper
Careerverified
Per 600 PAverified
35
313.43
Jack Leiper
Career
Per 600 PA
21
600
John Roper
Careerverified
Per 600 PA
67
600
Jack Leiper
Career
Per 600 PAverified
21
600
John Roper
Careerverified
Per 600 PA
62
555.22
Jack Leiper
Career
Per 600 PA
0.143
0.143
John Roper
Careerverified
Per 600 PAverified
0.177
0.177
Jack Leiper
Career
Per 600 PA
0.286
0.286
John Roper
Careerverified
Per 600 PAverified
0.425
0.425
Jack Leiper
Career
Per 600 PA
3
85.71
John Roper
Careerverified
Per 600 PAverified
11
98.51
Jack Leiper
Career
Per 600 PA
3
85.71
John Roper
Careerverified
Per 600 PAverified
10
89.55
Jack Leiper
Career
Per 600 PA
0
0
John Roper
Careerverified
Per 600 PAverified
1
8.96
Jack Leiper
Career
Per 600 PA
0
0
John Roper
Career
Per 600 PA
0
0
Jack Leiper
Career
Per 600 PA
0
0
John Roper
Career
Per 600 PA
0
0
Jack Leiper
Career
Per 600 PA
0
0
John Roper
Careerverified
Per 600 PAverified
1
8.96
Jack Leiper
Career
Per 600 PA
0
0
John Roper
Careerverified
Per 600 PAverified
0.091
0.091
Jack Leiper
Career
Per 600 PA
0
0
John Roper
Career
Per 600 PA
0
0
Jack Leiper
Career
Per 600 PA
0
0
John Roper
Career
Per 600 PA
0
0
Jack Leiper
Career
Per 600 PA
0.38
10.96
John Roper
Careerverified
Per 600 PAverified
1.99
17.82
Jack Leiper
Career
Per 600 PA
3
85.71
John Roper
Careerverified
Per 600 PAverified
12
107.46
Jack Leiper
Career
Per 600 PA
3
85.71
John Roper
Careerverified
Per 600 PAverified
12
107.46
Jack Leiper
Career
Per 600 PA
0.143
0.143
John Roper
Careerverified
Per 600 PAverified
0.191
0.191
Jack Leiper
Career
Per 600 PA
0.143
0.143
John Roper
Careerverified
Per 600 PAverified
0.194
0.194
Jack Leiper
Career
Per 600 PA
0.286
0.286
John Roper
Careerverified
Per 600 PAverified
0.384
0.384
Jack Leiper
Career
Per 600 PA
0
0
John Roper
Careerverified
Per 600 PAverified
0.016
0.016
Jack Leiper
Career
Per 600 PA
0.1
0.1
John Roper
Careerverified
Per 600 PAverified
0.134
0.134
Jack Leiper
Career
Per 600 PA
0.167
0.167
John Roper
Careerverified
Per 600 PAverified
0.25
0.25
Jack Leiper
Career
Per 600 PA
0.2
0.2
John Roper
Careerverified
Per 600 PAverified
0.282
0.282
Jack Leiper
Career
Per 600 PAverified
2
57.14
John Roper
Careerverified
Per 600 PA
4
35.82
Jack Leiper
Career
Per 600 PAverified
3
85.71
John Roper
Careerverified
Per 600 PA
4
35.82
Jack Leiper
Career
Per 600 PAverified
5
142.86
John Roper
Careerverified
Per 600 PA
8
71.64
Jack Leiper
Career
Per 600 PA
-0.11
-3.09
John Roper
Careerverified
Per 600 PAverified
1.39
12.45
Jack Leiper
Career
Per 600 PA
0
0
John Roper
Career
Per 600 PA
0
0
Jack Leiper
Career
Per 600 PA
0
0
John Roper
Careerverified
Per 600 PAverified
1
8.96
Jack Leiper
Career
Per 600 PA
0
0
John Roper
Career
Per 600 PA
0
0
Jack Leiper
Careerverified
Per 600 PAverified
6
171.43
John Roper
Career
Per 600 PA
23
205.97
Jack Leiper
Careerverified
Per 600 PAverified
3.5
3.5
John Roper
Career
Per 600 PA
2.91
2.91
Jack Leiper
Career
Per 600 PA
0
0
John Roper
Careerverified
Per 600 PAverified
0.04
0.04
Jack Leiper
Career
Per 600 PA
0
0
John Roper
Careerverified
Per 600 PAverified
4
35.82
Jack Leiper
Career
Per 600 PA
0
0
John Roper
Career
Per 600 PA
0
0
Jack Leiper
Careerverified
Per 600 PAverified
0
0
John Roper
Career
Per 600 PA
1
8.96
Jack Leiper
Career
Per 600 PA
0
0
John Roper
Career
Per 600 PA
0
0
Jack Leiper
Career
Per 600 PA
0
0
John Roper
Career
Per 600 PA
0
0
Jack Leiper
Career
Per 600 PA
0
0
John Roper
Career
Per 600 PA
0
0
Jack Leiper
Career
Per 600 PA
John Roper
Career
Per 600 PA