Gene Conley vs. George O'Donnell — Career Comparison

Looking at the career totals, Gene Conley and George O'Donnell are fairly close on the surface numbers. Gene Conley posted stronger numbers in ERA (3.82 vs 4.53) and WHIP (1.359 vs 1.443). George O'Donnell had the advantage in home runs allowed (0.41 per nine innings vs 0.92). By the career numbers, Gene Conley 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.