John Slappey vs. Vern Underhill — Career Comparison

On the career pitching numbers, Vern Underhill posted a stronger line than John Slappey. Vern Underhill posted stronger numbers in ERA (5.7 vs 7.11) and WHIP (2.092 vs 3.000). By the career numbers, Vern Underhill 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.