Don Carman vs. Jim Mertz — Career Comparison

Looking at the career totals, Don Carman and Jim Mertz are fairly close on the surface numbers. Don Carman posted stronger numbers in ERA (4.11 vs 4.63) and WHIP (1.380 vs 1.431). Jim Mertz had the advantage in home runs allowed (0.54 per nine innings vs 1.12). By the career numbers, Don Carman 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.