John McMillon vs. Jim Peterson — Career Comparison

Looking at the career totals, John McMillon and Jim Peterson are fairly close on the surface numbers. John McMillon posted stronger numbers in ERA (1.69 vs 5.27) and WHIP (0.813 vs 1.665). Jim Peterson had the advantage in home runs allowed (0.74 per nine innings vs 1.13). By the career numbers, John McMillon had the better of this comparison — though ERA and WHIP alone don't account for era, park factors, or the defenses each pitcher worked behind.