Charlie Kerfeld vs. Robert Manuel — Career Comparison

Looking at the career totals, Charlie Kerfeld and Robert Manuel are fairly close on the surface numbers. Robert Manuel posted stronger numbers in ERA (3.18 vs 4.2) and WHIP (1.412 vs 1.572). Charlie Kerfeld had the advantage in home runs allowed (0.54 per nine innings vs 2.65). By the career numbers, Robert Manuel 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.