Jonathan Aro vs. Spencer Schwellenbach — Career Comparison
Spencer Schwellenbach built a career as a starting pitcher and Jonathan Aro as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Spencer Schwellenbach posted stronger surface numbers — ERA 3.23 and WHIP 1.016 compared to 6.55 and 1.909 for Jonathan Aro. By the career numbers, Spencer Schwellenbach had the better of this cross-role comparison — though era context would sharpen the verdict.
Pitching Stats for Jonathan Aro and Spencer Schwellenbach
Jonathan Aro
Career
Per 9 Innings
2
2
Spencer Schwellenbach
Career
Per 9 Innings
2
2
Jonathan Aro
Career
Per 9 Innings
7
5.73
Spencer Schwellenbach
Career
Per 9 Innings
38
1.46
Jonathan Aro
Career
Per 9 Innings
1
0.82
Spencer Schwellenbach
Career
Per 9 Innings
11
0.42
Jonathan Aro
Career
Per 9 Innings
0
0
Spencer Schwellenbach
Career
Per 9 Innings
57.69
57.69
Jonathan Aro
Career
Per 9 Innings
0
0
Spencer Schwellenbach
Career
Per 9 Innings
100
100
Jonathan Aro
Career
Per 9 Innings
0
0
Spencer Schwellenbach
Career
Per 9 Innings
1
0.04
Jonathan Aro
Career
Per 9 Innings
8
6.55
Spencer Schwellenbach
Career
Per 9 Innings
84
3.23
Jonathan Aro
Career
Per 9 Innings
6.55
6.55
Spencer Schwellenbach
Career
Per 9 Innings
3.23
3.23
Jonathan Aro
Career
Per 9 Innings
7.73
7.73
Spencer Schwellenbach
Career
Per 9 Innings
2.55
2.55
Jonathan Aro
Career
Per 9 Innings
5.27
5.27
Spencer Schwellenbach
Career
Per 9 Innings
3.12
3.12
Jonathan Aro
Career
Per 9 Innings
0.34
0.34
Spencer Schwellenbach
Career
Per 9 Innings
0.222
0.222
Jonathan Aro
Career
Per 9 Innings
33
27
Spencer Schwellenbach
Career
Per 9 Innings
703
27
Jonathan Aro
Career
Per 9 Innings
11
9
Spencer Schwellenbach
Career
Per 9 Innings
234.1
9
Jonathan Aro
Career
Per 9 Innings
16
13.09
Spencer Schwellenbach
Career
Per 9 Innings
195
7.49
Jonathan Aro
Career
Per 9 Innings
13.09
13.09
Spencer Schwellenbach
Career
Per 9 Innings
7.49
7.49
Jonathan Aro
Career
Per 9 Innings
2
1.64
Spencer Schwellenbach
Career
Per 9 Innings
27
1.04
Jonathan Aro
Career
Per 9 Innings
1.64
1.64
Spencer Schwellenbach
Career
Per 9 Innings
1.04
1.04
Jonathan Aro
Career
Per 9 Innings
0.29
0.29
Spencer Schwellenbach
Career
Per 9 Innings
0.71
0.71
Jonathan Aro
Career
Per 9 Innings
5
4.09
Spencer Schwellenbach
Career
Per 9 Innings
41
1.57
Jonathan Aro
Career
Per 9 Innings
0
0
Spencer Schwellenbach
Career
Per 9 Innings
2
0.08
Jonathan Aro
Career
Per 9 Innings
4.09
4.09
Spencer Schwellenbach
Career
Per 9 Innings
1.57
1.57
Jonathan Aro
Career
Per 9 Innings
8
6.55
Spencer Schwellenbach
Career
Per 9 Innings
235
9.03
Jonathan Aro
Career
Per 9 Innings
6.55
6.55
Spencer Schwellenbach
Career
Per 9 Innings
9.03
9.03
Jonathan Aro
Career
Per 9 Innings
1.14
1.14
Spencer Schwellenbach
Career
Per 9 Innings
6.18
6.18
Jonathan Aro
Career
Per 9 Innings
1.182
1.182
Spencer Schwellenbach
Career
Per 9 Innings
1.178
1.178
Jonathan Aro
Career
Per 9 Innings
0
0
Spencer Schwellenbach
Career
Per 9 Innings
5
0.19
Jonathan Aro
Career
Per 9 Innings
0
0
Spencer Schwellenbach
Career
Per 9 Innings
8
0.31
Jonathan Aro
Career
Per 9 Innings
53
43.36
Spencer Schwellenbach
Career
Per 9 Innings
934
35.87
Jonathan Aro
Career
Per 9 Innings
2
1.64
Spencer Schwellenbach
Career
Per 9 Innings
0
0
Jonathan Aro
Career
Per 9 Innings
8
6.55
Spencer Schwellenbach
Career
Per 9 Innings
93
3.57
Jonathan Aro
Career
Per 9 Innings
6.55
6.55
Spencer Schwellenbach
Career
Per 9 Innings
3.57
3.57
Jonathan Aro
Career
Per 9 Innings
0
0
Spencer Schwellenbach
Career
Per 9 Innings
3
0.12
Jonathan Aro
Career
Per 9 Innings
1
0.82
Spencer Schwellenbach
Career
Per 9 Innings
4
0.15
Jonathan Aro
Career
Per 9 Innings
0
0
Spencer Schwellenbach
Career
Per 9 Innings
12
0.46
Jonathan Aro
Career
Per 9 Innings
1.909
1.909
Spencer Schwellenbach
Career
Per 9 Innings
1.007
1.007
Jonathan Aro
Career
Per 9 Innings
47
38.45
Spencer Schwellenbach
Career
Per 9 Innings
878
33.72
Jonathan Aro
Career
Per 9 Innings
1.14
1.14
Spencer Schwellenbach
Career
Per 9 Innings
2.45
2.45
Jonathan Aro
Career
Per 9 Innings
0.378
0.378
Spencer Schwellenbach
Career
Per 9 Innings
0.273
0.273
Jonathan Aro
Career
Per 9 Innings
43.36
43.36
Spencer Schwellenbach
Career
Per 9 Innings
35.87
35.87
Fielding Stats for Jonathan Aro and Spencer Schwellenbach
Jonathan Aro
Career
Per 9 Innings
2
2
Spencer Schwellenbach
Career
Per 9 Innings
2
2
Jonathan Aro
Career
Per 9 Innings
7
5.73
Spencer Schwellenbach
Career
Per 9 Innings
38
1.46
Jonathan Aro
Career
Per 9 Innings
0
0
Spencer Schwellenbach
Career
Per 9 Innings
38
1.46
Jonathan Aro
Career
Per 9 Innings
33
27
Spencer Schwellenbach
Career
Per 9 Innings
703
27
Jonathan Aro
Career
Per 9 Innings
11
9
Spencer Schwellenbach
Career
Per 9 Innings
234.1
9
Jonathan Aro
Career
Per 9 Innings
1
0.82
Spencer Schwellenbach
Career
Per 9 Innings
28
1.08
Jonathan Aro
Career
Per 9 Innings
1
0.82
Spencer Schwellenbach
Career
Per 9 Innings
74
2.84
Jonathan Aro
Career
Per 9 Innings
1
0.82
Spencer Schwellenbach
Career
Per 9 Innings
73
2.8
Jonathan Aro
Career
Per 9 Innings
100
100
Spencer Schwellenbach
Career
Per 9 Innings
98.65
98.65
Jonathan Aro
Career
Per 9 Innings
0.143
0.143
Spencer Schwellenbach
Career
Per 9 Innings
1.921
1.921
Jonathan Aro
Career
Per 9 Innings
0
0
Spencer Schwellenbach
Career
Per 9 Innings
100
100
Jonathan Aro
Career
Per 9 Innings
0
0
Spencer Schwellenbach
Career
Per 9 Innings
5
0.19
Jonathan Aro
Career
Per 9 Innings
0
0
Spencer Schwellenbach
Career
Per 9 Innings
0
0
Jonathan Aro
Career
Per 9 Innings
0
0
Spencer Schwellenbach
Career
Per 9 Innings
0
0
Jonathan Aro
Career
Per 9 Innings
0
0
Spencer Schwellenbach
Career
Per 9 Innings
0
0
Hitting Stats for Jonathan Aro and Spencer Schwellenbach
Jonathan Aro
Career
Per 600 PA
Spencer Schwellenbach
Career
Per 600 PA
Jonathan Aro
Career
Per 600 PA
Spencer Schwellenbach
Career
Per 600 PA
Jonathan Aro
Career
Per 600 PA
0
Spencer Schwellenbach
Career
Per 600 PA
0