Charlie Kerfeld vs. Joe Mulligan — Career Comparison

Looking at the career totals, Charlie Kerfeld and Joe Mulligan are fairly close on the surface numbers. Joe Mulligan posted stronger numbers in ERA (3.63 vs 4.2) and home runs allowed (0.2 per nine innings vs 0.54). Charlie Kerfeld had the advantage in WHIP (1.572 vs 1.634). By the career numbers, Joe Mulligan 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.