Atahualpa Severino vs. Ron Willis — Career Comparison

Looking at the career totals, Atahualpa Severino and Ron Willis are fairly close on the surface numbers. Ron Willis posted stronger numbers in ERA (3.32 vs 3.86) and home runs allowed (0.57 per nine innings vs 1.93). Atahualpa Severino had the advantage in WHIP (1.286 vs 1.544). By the career numbers, Ron Willis 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.