Bob Dresser vs. Roy Thomas — Career Comparison

On the career pitching numbers, Bob Dresser posted a stronger line than Roy Thomas. Bob Dresser posted stronger numbers in ERA (3 vs 3.82) and WHIP (1.333 vs 1.455). By the career numbers, Bob Dresser 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.