Rolla Mapel vs. Tommy Thompson — Career Comparison

Looking at the career totals, Rolla Mapel and Tommy Thompson are fairly close on the surface numbers. Rolla Mapel had the edge in ERA (4.5 vs 6.06). By the career numbers, Rolla Mapel 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.