Thomas Hatch vs. Jose Valverde — Career Comparison

On the career pitching numbers, Jose Valverde posted a stronger line than Thomas Hatch. Jose Valverde posted stronger numbers in ERA (3.27 vs 5.24) and WHIP (1.245 vs 1.621). By the career numbers, Jose Valverde 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.