Wily Peralta vs. Joe Sullivan — Career Comparison

Looking at the career totals, Wily Peralta and Joe Sullivan are fairly close on the surface numbers. Joe Sullivan posted stronger numbers in ERA (4.01 vs 4.29) and home runs allowed (0.38 per nine innings vs 1.09). Wily Peralta had the advantage in WHIP (1.458 vs 1.529). By the career numbers, Joe Sullivan 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.