Stephen Pryor vs. Willis Roberts — Career Comparison

Looking at the career totals, Stephen Pryor and Willis Roberts are fairly close on the surface numbers. Stephen Pryor posted stronger numbers in ERA (2.81 vs 4.64) and WHIP (1.375 vs 1.521). Willis Roberts had the advantage in home runs allowed (0.94 per nine innings vs 1.41). By the career numbers, Stephen Pryor 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.