Jack Rowan vs. Leon Williams — Career Comparison

Jack Rowan
Lost GenerationPennsylvaniaThrows RightBats RightNorth AmericaCincinnati RedsNational LeagueStarting Pitcher
Leon Williams
Greatest GenerationGeorgiaThrows LeftBats LeftNorth AmericaBrooklyn DodgersNational LeagueRelief Pitcher

Jack Rowan built a career as a starting pitcher and Leon Williams 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 2.160 for Leon Williams. 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 Rowan and Leon Williams

Jack Rowan
Careerverified
Per 9 Inningsverified
7
7
Leon Williams
Career
Per 9 Innings
1
1
Jack Rowan
Careerverified
Per 9 Innings
119
1.6
Leon Williams
Career
Per 9 Inningsverified
8
8.64
Jack Rowan
Careerverified
Per 9 Inningsverified
74
0.99
Leon Williams
Career
Per 9 Innings
0
0
Jack Rowan
Careerverified
Per 9 Inningsverified
31
0.42
Leon Williams
Career
Per 9 Innings
0
0
Jack Rowan
Career
Per 9 Innings
40
0.54
Leon Williams
Careerverified
Per 9 Inningsverified
0
0
Jack Rowan
Careerverified
Per 9 Inningsverified
43.66
43.66
Leon Williams
Career
Per 9 Innings
Jack Rowan
Careerverified
Per 9 Inningsverified
62.18
62.18
Leon Williams
Career
Per 9 Innings
0
0
Jack Rowan
Careerverified
Per 9 Inningsverified
44
0.59
Leon Williams
Career
Per 9 Innings
0
0
Jack Rowan
Careerverified
Per 9 Inningsverified
5
0.07
Leon Williams
Career
Per 9 Innings
0
0
Jack Rowan
Careerverified
Per 9 Inningsverified
3
0.04
Leon Williams
Career
Per 9 Innings
0
0
Jack Rowan
Career
Per 9 Inningsverified
229
3.07
Leon Williams
Careerverified
Per 9 Innings
5
5.4
Jack Rowan
Careerverified
Per 9 Inningsverified
3.07
3.07
Leon Williams
Career
Per 9 Innings
5.4
5.4
Jack Rowan
Careerverified
Per 9 Inningsverified
3.34
3.34
Leon Williams
Career
Per 9 Innings
8.44
8.44
Jack Rowan
Career
Per 9 Innings
3.64
3.64
Leon Williams
Careerverified
Per 9 Inningsverified
3
3
Jack Rowan
Careerverified
Per 9 Inningsverified
0.254
0.254
Leon Williams
Career
Per 9 Innings
0.41
0.41
Jack Rowan
Careerverified
Per 9 Innings
2012
27
Leon Williams
Career
Per 9 Innings
25
27
Jack Rowan
Careerverified
Per 9 Innings
670.2
9
Leon Williams
Career
Per 9 Innings
8.1
9
Jack Rowan
Career
Per 9 Inningsverified
623
8.36
Leon Williams
Careerverified
Per 9 Innings
16
17.28
Jack Rowan
Careerverified
Per 9 Inningsverified
8.36
8.36
Leon Williams
Career
Per 9 Innings
17.28
17.28
Jack Rowan
Career
Per 9 Innings
8
0.11
Leon Williams
Careerverified
Per 9 Inningsverified
0
0
Jack Rowan
Career
Per 9 Innings
0.11
0.11
Leon Williams
Careerverified
Per 9 Inningsverified
0
0
Jack Rowan
Career
Per 9 Innings
0.07
0.07
Leon Williams
Careerverified
Per 9 Inningsverified
0
0
Jack Rowan
Career
Per 9 Innings
272
3.65
Leon Williams
Careerverified
Per 9 Inningsverified
2
2.16
Jack Rowan
Career
Per 9 Innings
0
0
Leon Williams
Career
Per 9 Innings
0
0
Jack Rowan
Career
Per 9 Innings
3.65
3.65
Leon Williams
Careerverified
Per 9 Inningsverified
2.16
2.16
Jack Rowan
Careerverified
Per 9 Inningsverified
267
3.58
Leon Williams
Career
Per 9 Innings
3
3.24
Jack Rowan
Careerverified
Per 9 Inningsverified
3.58
3.58
Leon Williams
Career
Per 9 Innings
3.24
3.24
Jack Rowan
Careerverified
Per 9 Inningsverified
2.24
2.24
Leon Williams
Career
Per 9 Innings
0.38
0.38
Jack Rowan
Careerverified
Per 9 Inningsverified
0.804
0.804
Leon Williams
Career
Per 9 Innings
0.6
0.6
Jack Rowan
Career
Per 9 Innings
12
0.16
Leon Williams
Careerverified
Per 9 Inningsverified
0
0
Jack Rowan
Career
Per 9 Innings
15
0.2
Leon Williams
Careerverified
Per 9 Inningsverified
0
0
Jack Rowan
Career
Per 9 Inningsverified
2
0.03
Leon Williams
Careerverified
Per 9 Innings
1
1.08
Jack Rowan
Careerverified
Per 9 Innings
2742
36.8
Leon Williams
Career
Per 9 Inningsverified
41
44.28
Jack Rowan
Careerverified
Per 9 Innings
35
0.47
Leon Williams
Career
Per 9 Inningsverified
7
7.56
Jack Rowan
Career
Per 9 Inningsverified
313
4.2
Leon Williams
Careerverified
Per 9 Innings
6
6.48
Jack Rowan
Careerverified
Per 9 Inningsverified
4.2
4.2
Leon Williams
Career
Per 9 Innings
6.48
6.48
Jack Rowan
Career
Per 9 Innings
0
0
Leon Williams
Career
Per 9 Innings
0
0
Jack Rowan
Career
Per 9 Innings
0
0
Leon Williams
Career
Per 9 Innings
0
0
Jack Rowan
Career
Per 9 Innings
0
0
Leon Williams
Career
Per 9 Innings
0
0
Jack Rowan
Careerverified
Per 9 Inningsverified
1.335
1.335
Leon Williams
Career
Per 9 Innings
2.16
2.16
Jack Rowan
Careerverified
Per 9 Innings
2455
32.94
Leon Williams
Career
Per 9 Inningsverified
39
42.12
Jack Rowan
Career
Per 9 Innings
2.63
2.63
Leon Williams
Careerverified
Per 9 Inningsverified
0.75
0.75
Jack Rowan
Careerverified
Per 9 Inningsverified
0.282
0.282
Leon Williams
Career
Per 9 Innings
0.444
0.444
Jack Rowan
Career
Per 9 Innings
36.8
36.8
Leon Williams
Careerverified
Per 9 Inningsverified
44.28
44.28

Fielding Stats for Jack Rowan and Leon Williams

Jack Rowan
Careerverified
Per 9 Inningsverified
7
7
Leon Williams
Career
Per 9 Innings
1
Jack Rowan
Careerverified
Per 9 Inningsverified
119
1.97
Leon Williams
Career
Per 9 Innings
9
Jack Rowan
Careerverified
Per 9 Inningsverified
61
1.01
Leon Williams
Career
Per 9 Innings
0
Jack Rowan
Careerverified
Per 9 Inningsverified
1635
27
Leon Williams
Career
Per 9 Innings
0
Jack Rowan
Careerverified
Per 9 Inningsverified
545
9
Leon Williams
Career
Per 9 Innings
0
Jack Rowan
Careerverified
Per 9 Inningsverified
12
0.2
Leon Williams
Career
Per 9 Innings
0
Jack Rowan
Careerverified
Per 9 Inningsverified
148
2.44
Leon Williams
Career
Per 9 Innings
5
Jack Rowan
Career
Per 9 Innings
11
0.18
Leon Williams
Careerverified
Per 9 Inningsverified
0
Jack Rowan
Careerverified
Per 9 Inningsverified
171
2.82
Leon Williams
Career
Per 9 Innings
5
Jack Rowan
Careerverified
Per 9 Inningsverified
160
2.64
Leon Williams
Career
Per 9 Innings
5
Jack Rowan
Career
Per 9 Inningsverified
93.57
93.57
Leon Williams
Careerverified
Per 9 Innings
100
Jack Rowan
Careerverified
Per 9 Inningsverified
1.345
1.345
Leon Williams
Career
Per 9 Innings
0.556
Jack Rowan
Careerverified
Per 9 Inningsverified
51.26
51.26
Leon Williams
Career
Per 9 Innings
0
Jack Rowan
Careerverified
Per 9 Inningsverified
4
0.07
Leon Williams
Career
Per 9 Innings
0
Jack Rowan
Career
Per 9 Innings
0
0
Leon Williams
Career
Per 9 Innings
0
Jack Rowan
Career
Per 9 Innings
0
0
Leon Williams
Career
Per 9 Innings
0
Jack Rowan
Career
Per 9 Innings
0
0
Leon Williams
Career
Per 9 Innings
0
Jack Rowan
Career
Per 9 Innings
0
0
Leon Williams
Career
Per 9 Innings
0

Hitting Stats for Jack Rowan and Leon Williams

Jack Rowan
Careerverified
Per 600 PAverified
7
7
Leon Williams
Career
Per 600 PA
1
1
Jack Rowan
Careerverified
Per 600 PA
119
310.43
Leon Williams
Career
Per 600 PAverified
12
1440
Jack Rowan
Careerverified
Per 600 PA
230
600
Leon Williams
Career
Per 600 PA
5
600
Jack Rowan
Careerverified
Per 600 PA
199
519.13
Leon Williams
Career
Per 600 PAverified
5
600
Jack Rowan
Career
Per 600 PA
0.151
0.151
Leon Williams
Careerverified
Per 600 PAverified
0.2
0.2
Jack Rowan
Career
Per 600 PA
0.479
0.479
Leon Williams
Careerverified
Per 600 PAverified
0.6
0.6
Jack Rowan
Careerverified
Per 600 PA
30
78.26
Leon Williams
Career
Per 600 PAverified
1
120
Jack Rowan
Careerverified
Per 600 PAverified
27
70.43
Leon Williams
Career
Per 600 PA
0
0
Jack Rowan
Career
Per 600 PA
1
2.61
Leon Williams
Career
Per 600 PAverified
1
120
Jack Rowan
Careerverified
Per 600 PAverified
2
5.22
Leon Williams
Career
Per 600 PA
0
0
Jack Rowan
Career
Per 600 PA
0
0
Leon Williams
Career
Per 600 PA
0
0
Jack Rowan
Careerverified
Per 600 PA
3
7.83
Leon Williams
Career
Per 600 PAverified
1
120
Jack Rowan
Career
Per 600 PA
0.1
0.1
Leon Williams
Careerverified
Per 600 PAverified
1
1
Jack Rowan
Career
Per 600 PA
0
0
Leon Williams
Career
Per 600 PA
0
0
Jack Rowan
Career
Per 600 PA
0
0
Leon Williams
Career
Per 600 PA
0
0
Jack Rowan
Careerverified
Per 600 PA
10.28
26.81
Leon Williams
Career
Per 600 PAverified
0.38
45.23
Jack Rowan
Careerverified
Per 600 PA
35
91.3
Leon Williams
Career
Per 600 PAverified
2
240
Jack Rowan
Careerverified
Per 600 PAverified
55
143.48
Leon Williams
Career
Per 600 PA
1
120
Jack Rowan
Careerverified
Per 600 PAverified
0.246
0.246
Leon Williams
Career
Per 600 PA
0.2
0.2
Jack Rowan
Career
Per 600 PA
0.176
0.176
Leon Williams
Careerverified
Per 600 PAverified
0.4
0.4
Jack Rowan
Career
Per 600 PA
0.421
0.421
Leon Williams
Careerverified
Per 600 PAverified
0.6
0.6
Jack Rowan
Career
Per 600 PA
0.025
0.025
Leon Williams
Careerverified
Per 600 PAverified
0.2
0.2
Jack Rowan
Career
Per 600 PA
0.155
0.155
Leon Williams
Careerverified
Per 600 PAverified
0.19
0.19
Jack Rowan
Career
Per 600 PA
0.367
0.367
Leon Williams
Careerverified
Per 600 PAverified
0.5
0.5
Jack Rowan
Career
Per 600 PA
0.244
0.244
Leon Williams
Careerverified
Per 600 PAverified
0.333
0.333
Jack Rowan
Careerverified
Per 600 PA
9
23.48
Leon Williams
Career
Per 600 PAverified
1
120
Jack Rowan
Careerverified
Per 600 PAverified
13
33.91
Leon Williams
Career
Per 600 PA
0
0
Jack Rowan
Careerverified
Per 600 PA
22
57.39
Leon Williams
Career
Per 600 PAverified
1
120
Jack Rowan
Careerverified
Per 600 PA
9.89
25.79
Leon Williams
Career
Per 600 PAverified
0.3
35.81
Jack Rowan
Careerverified
Per 600 PAverified
1
2.61
Leon Williams
Career
Per 600 PA
0
0
Jack Rowan
Careerverified
Per 600 PAverified
24
62.61
Leon Williams
Career
Per 600 PA
0
0
Jack Rowan
Career
Per 600 PA
0
0
Leon Williams
Career
Per 600 PA
0
0
Jack Rowan
Career
Per 600 PAverified
76
198.26
Leon Williams
Careerverified
Per 600 PA
2
240
Jack Rowan
Careerverified
Per 600 PAverified
3.03
3.03
Leon Williams
Career
Per 600 PA
2.5
2.5
Jack Rowan
Careerverified
Per 600 PAverified
0.32
0.32
Leon Williams
Career
Per 600 PA
0
0
Jack Rowan
Careerverified
Per 600 PAverified
6
15.65
Leon Williams
Career
Per 600 PA
0
0
Jack Rowan
Career
Per 600 PA
0
0
Leon Williams
Career
Per 600 PA
0
0
Jack Rowan
Career
Per 600 PA
0
0
Leon Williams
Career
Per 600 PA
0
0
Jack Rowan
Careerverified
Per 600 PAverified
2
5.22
Leon Williams
Career
Per 600 PA
0
0
Jack Rowan
Career
Per 600 PA
0
0
Leon Williams
Career
Per 600 PA
0
0
Jack Rowan
Careerverified
Per 600 PAverified
2
5.22
Leon Williams
Career
Per 600 PA
0
0
Jack Rowan
Careerverified
Per 600 PAverified
100
100
Leon Williams
Career
Per 600 PA