Bill Pertica vs. Roy Witherup — Career Comparison

Looking at the career totals, Bill Pertica and Roy Witherup are fairly close on the surface numbers. Roy Witherup posted stronger numbers in WHIP (1.454 vs 1.535) and home runs allowed (0.17 per nine innings vs 0.38). Bill Pertica had the advantage in ERA (4.27 vs 4.44). By the career numbers, Roy Witherup 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.