John Singleton vs. Vern Underhill — Career Comparison

Looking at the career totals, John Singleton and Vern Underhill are fairly close on the surface numbers. Vern Underhill posted stronger numbers in ERA (5.7 vs 5.9) and home runs allowed (0 per nine innings vs 0.58). John Singleton had the advantage in WHIP (1.774 vs 2.092). 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.