Mike Mattimore vs. R. Smith — Career Comparison

Looking at the career totals, Mike Mattimore and R. Smith are fairly close on the surface numbers. Mike Mattimore posted stronger numbers in ERA (3.83 vs 9) and WHIP (1.423 vs 1.800). R. Smith had the advantage in home runs allowed (0 per nine innings vs 0.22). 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.