George O'Donnell vs. Rip Vowinkel — Career Comparison

On the career pitching numbers, Rip Vowinkel posted a stronger line than George O'Donnell. Rip Vowinkel posted stronger numbers in ERA (4.17 vs 4.53) and WHIP (1.368 vs 1.443). By the career numbers, Rip Vowinkel 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.