Fritz Peterson vs. Roy Witherup — Career Comparison

Looking at the career totals, Fritz Peterson and Roy Witherup are fairly close on the surface numbers. Fritz Peterson posted stronger numbers in ERA (3.3 vs 4.44) and WHIP (1.225 vs 1.454). Roy Witherup had the advantage in home runs allowed (0.17 per nine innings vs 0.7). By the career numbers, Fritz Peterson 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.