Ryne Harper vs. Jim Peterson — Career Comparison

Looking at the career totals, Ryne Harper and Jim Peterson are fairly close on the surface numbers. Ryne Harper posted stronger numbers in ERA (4.67 vs 5.27) and WHIP (1.293 vs 1.665). Jim Peterson had the advantage in home runs allowed (0.74 per nine innings vs 1.43). By the career numbers, Ryne Harper 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.