John Jasper vs. Carl Willis — Career Comparison

On the career pitching numbers, Carl Willis posted a stronger line than John Jasper. Carl Willis posted stronger numbers in ERA (4.25 vs 9.82) and WHIP (1.444 vs 2.455). By the career numbers, Carl Willis 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.