Ron Marinaccio vs. John Valentine — Career Comparison

Looking at the career totals, Ron Marinaccio and John Valentine are fairly close on the surface numbers. Ron Marinaccio posted stronger numbers in ERA (3.02 vs 3.53) and WHIP (1.165 vs 1.441). John Valentine had the advantage in home runs allowed (0 per nine innings vs 0.86). By the career numbers, Ron Marinaccio 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.