Greg Heydeman vs. Masumi Kuwata — Career Comparison

On the career pitching numbers, Greg Heydeman posted a stronger line than Masumi Kuwata. Greg Heydeman posted stronger numbers in ERA (4.5 vs 9.43) and WHIP (1.500 vs 2.095). By the career numbers, Greg Heydeman 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.