Roger Clemens vs. George O'Donnell — Career Comparison

Looking at the career totals, Roger Clemens and George O'Donnell are fairly close on the surface numbers. Roger Clemens posted stronger numbers in ERA (3.12 vs 4.53) and WHIP (1.185 vs 1.443). George O'Donnell had the advantage in home runs allowed (0.41 per nine innings vs 0.66). By the career numbers, Roger Clemens 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.