Charlie Blackburn vs. John Perkovich — Career Comparison

Charlie Blackburn 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. John Perkovich posted stronger surface numbers — ERA 7.2 and WHIP 1.600 compared to 8.1 and 1.980 for Charlie Blackburn. By the career numbers, John Perkovich had the better of this cross-role comparison — though era context would sharpen the verdict.