Pete Ladd vs. Jim Peterson — Career Comparison

Looking at the career totals, Pete Ladd and Jim Peterson are fairly close on the surface numbers. Pete Ladd posted stronger numbers in ERA (4.14 vs 5.27) and WHIP (1.341 vs 1.665). Jim Peterson had the advantage in home runs allowed (0.74 per nine innings vs 1.25). By the career numbers, Pete Ladd 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.