Lefty Capers vs. George O'Donnell — Career Comparison

On the career pitching numbers, Lefty Capers posted a stronger line than George O'Donnell. Lefty Capers posted stronger numbers in ERA (3.86 vs 4.53) and WHIP (1.262 vs 1.443). By the career numbers, Lefty Capers 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.