Rolla Mapel vs. Frank Tanana — Career Comparison

Looking at the career totals, Rolla Mapel and Frank Tanana are fairly close on the surface numbers. Frank Tanana posted stronger numbers in ERA (3.66 vs 4.5) and WHIP (1.297 vs 1.700). Rolla Mapel had the advantage in home runs allowed (0 per nine innings vs 0.96). By the career numbers, Frank Tanana 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.