Fred Hayner vs. Vito Valentinetti — Career Comparison

On the career pitching numbers, Vito Valentinetti posted a stronger line than Fred Hayner. Vito Valentinetti posted stronger numbers in ERA (4.73 vs 13.5) and WHIP (1.568 vs 3.000). By the career numbers, Vito Valentinetti 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.