Ronald Bolanos vs. John Perkovich — Career Comparison
Ronald Bolanos built a career as a starting pitcher and John Perkovich as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Ronald Bolanos posted stronger surface numbers — ERA 5.25 and WHIP 1.646 compared to 7.2 and 1.600 for John Perkovich. By the career numbers, Ronald Bolanos had the better of this cross-role comparison — though era context would sharpen the verdict.
Pitching Stats for Ronald Bolanos and John Perkovich
Ronald Bolanos
Career
Per 9 Innings
18
3.38
John Perkovich
Career
Per 9 Innings
1
1.8
Ronald Bolanos
Career
Per 9 Innings
27.78
27.78
John Perkovich
Career
Per 9 Innings
0
0
Ronald Bolanos
Career
Per 9 Innings
28
5.25
John Perkovich
Career
Per 9 Innings
4
7.2
Ronald Bolanos
Career
Per 9 Innings
5.25
5.25
John Perkovich
Career
Per 9 Innings
7.2
7.2
Ronald Bolanos
Career
Per 9 Innings
5.8
5.8
John Perkovich
Career
Per 9 Innings
9.27
9.27
Ronald Bolanos
Career
Per 9 Innings
5.23
5.23
John Perkovich
Career
Per 9 Innings
10.2
10.2
Ronald Bolanos
Career
Per 9 Innings
0.266
0.266
John Perkovich
Career
Per 9 Innings
0.318
0.318
Ronald Bolanos
Career
Per 9 Innings
144
27
John Perkovich
Career
Per 9 Innings
15
27
Ronald Bolanos
Career
Per 9 Innings
48
9
John Perkovich
Career
Per 9 Innings
5
9
Ronald Bolanos
Career
Per 9 Innings
49
9.19
John Perkovich
Career
Per 9 Innings
7
12.6
Ronald Bolanos
Career
Per 9 Innings
9.19
9.19
John Perkovich
Career
Per 9 Innings
12.6
12.6
Ronald Bolanos
Career
Per 9 Innings
7
1.31
John Perkovich
Career
Per 9 Innings
3
5.4
Ronald Bolanos
Career
Per 9 Innings
1.31
1.31
John Perkovich
Career
Per 9 Innings
5.4
5.4
Ronald Bolanos
Career
Per 9 Innings
0.39
0.39
John Perkovich
Career
Per 9 Innings
3
3
Ronald Bolanos
Career
Per 9 Innings
29
5.44
John Perkovich
Career
Per 9 Innings
1
1.8
Ronald Bolanos
Career
Per 9 Innings
1
0.19
John Perkovich
Career
Per 9 Innings
0
0
Ronald Bolanos
Career
Per 9 Innings
5.44
5.44
John Perkovich
Career
Per 9 Innings
1.8
1.8
Ronald Bolanos
Career
Per 9 Innings
43
8.06
John Perkovich
Career
Per 9 Innings
3
5.4
Ronald Bolanos
Career
Per 9 Innings
8.06
8.06
John Perkovich
Career
Per 9 Innings
5.4
5.4
Ronald Bolanos
Career
Per 9 Innings
2.39
2.39
John Perkovich
Career
Per 9 Innings
3
3
Ronald Bolanos
Career
Per 9 Innings
1.5
1.5
John Perkovich
Career
Per 9 Innings
0.8
0.8
Ronald Bolanos
Career
Per 9 Innings
221
41.44
John Perkovich
Career
Per 9 Innings
23
41.4
Ronald Bolanos
Career
Per 9 Innings
4
0.75
John Perkovich
Career
Per 9 Innings
1
1.8
Ronald Bolanos
Career
Per 9 Innings
5.63
5.63
John Perkovich
Career
Per 9 Innings
7.2
7.2
Ronald Bolanos
Career
Per 9 Innings
3
0.56
John Perkovich
Career
Per 9 Innings
0
0
Ronald Bolanos
Career
Per 9 Innings
1.625
1.625
John Perkovich
Career
Per 9 Innings
1.6
1.6
Ronald Bolanos
Career
Per 9 Innings
184
34.5
John Perkovich
Career
Per 9 Innings
22
39.6
Ronald Bolanos
Career
Per 9 Innings
1.67
1.67
John Perkovich
Career
Per 9 Innings
4
4
Ronald Bolanos
Career
Per 9 Innings
0.313
0.313
John Perkovich
Career
Per 9 Innings
0.25
0.25
Ronald Bolanos
Career
Per 9 Innings
41.44
41.44
John Perkovich
Career
Per 9 Innings
41.4
41.4
Fielding Stats for Ronald Bolanos and John Perkovich
Ronald Bolanos
Career
Per 9 Innings
18
3.38
John Perkovich
Career
Per 9 Innings
1
Ronald Bolanos
Career
Per 9 Innings
27.78
27.78
John Perkovich
Career
Per 9 Innings
0
Ronald Bolanos
Career
Per 9 Innings
0
0
John Perkovich
Career
Per 9 Innings
0
Hitting Stats for Ronald Bolanos and John Perkovich
Ronald Bolanos
Career
Per 600 PA
18
2160
John Perkovich
Career
Per 600 PA
1
600
Ronald Bolanos
Career
Per 600 PA
5
600
John Perkovich
Career
Per 600 PA
1
600
Ronald Bolanos
Career
Per 600 PA
0
0
John Perkovich
Career
Per 600 PA
0
0
Ronald Bolanos
Career
Per 600 PA
-0.54
-65.12
John Perkovich
Career
Per 600 PA
-0.11
-66.4
Ronald Bolanos
Career
Per 600 PA
1.25
1.25
John Perkovich
Career
Per 600 PA
1
1
Ronald Bolanos
Career
Per 600 PA
0
0
John Perkovich
Career
Per 600 PA
0
0