George Hesselbacher vs. Jose Mercedes — Career Comparison

On the career pitching numbers, Jose Mercedes posted a stronger line than George Hesselbacher. Jose Mercedes posted stronger numbers in ERA (4.75 vs 7.27) and WHIP (1.455 vs 2.269). By the career numbers, Jose Mercedes 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.