Roger Clemens vs. Stan Coveleski — Career Comparison

Looking at the career totals, Roger Clemens and Stan Coveleski are fairly close on the surface numbers. Stan Coveleski posted stronger numbers in ERA (2.89 vs 3.12) and home runs allowed (0.19 per nine innings vs 0.66). Roger Clemens had the advantage in WHIP (1.185 vs 1.251). By the career numbers, Stan Coveleski 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.