John Gilroy vs. Duane Theiss — Career Comparison

On the career pitching numbers, Duane Theiss posted a stronger line than John Gilroy. Duane Theiss posted stronger numbers in ERA (5.33 vs 6.23) and WHIP (1.963 vs 2.031). By the career numbers, Duane Theiss 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.