Bill Pertica vs. Ron Robinson — Career Comparison

Looking at the career totals, Bill Pertica and Ron Robinson are fairly close on the surface numbers. Ron Robinson posted stronger numbers in ERA (3.63 vs 4.27) and WHIP (1.378 vs 1.535). Bill Pertica had the advantage in home runs allowed (0.38 per nine innings vs 0.69). By the career numbers, Ron Robinson 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.