Stephen Pryor vs. Mason Thompson — Career Comparison

Looking at the career totals, Stephen Pryor and Mason Thompson are fairly close on the surface numbers. Stephen Pryor posted stronger numbers in ERA (2.81 vs 5.21) and WHIP (1.375 vs 1.667). Mason Thompson had the advantage in home runs allowed (0.87 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.