Fred Mitchell vs. George O'Donnell — Career Comparison

Looking at the career totals, Fred Mitchell and George O'Donnell are fairly close on the surface numbers. Fred Mitchell posted stronger numbers in ERA (4.1 vs 4.53) and home runs allowed (0.2 per nine innings vs 0.41). George O'Donnell had the advantage in WHIP (1.443 vs 1.544). By the career numbers, Fred Mitchell 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.