Rolla Mapel vs. Dave Stewart — Career Comparison

Looking at the career totals, Rolla Mapel and Dave Stewart are fairly close on the surface numbers. Dave Stewart posted stronger numbers in ERA (3.95 vs 4.5) and WHIP (1.361 vs 1.700). Rolla Mapel had the advantage in home runs allowed (0 per nine innings vs 0.9). By the career numbers, Dave Stewart 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.