Mike Mattimore vs. Allan Simpson — Career Comparison

On the career pitching numbers, Mike Mattimore posted a stronger line than Allan Simpson. Mike Mattimore posted stronger numbers in ERA (3.83 vs 6.06) and WHIP (1.423 vs 1.694). By the career numbers, Mike Mattimore 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.