Mark Melancon vs. John Valentine — Career Comparison

Looking at the career totals, Mark Melancon and John Valentine are fairly close on the surface numbers. Mark Melancon posted stronger numbers in ERA (2.94 vs 3.53) and WHIP (1.200 vs 1.441). John Valentine had the advantage in home runs allowed (0 per nine innings vs 0.54). By the career numbers, Mark Melancon 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.