Willie Hernandez vs. Roman Mendez — Career Comparison

Looking at the career totals, Willie Hernandez and Roman Mendez are fairly close on the surface numbers. Roman Mendez had the edge in ERA (3.09 vs 3.38). By the career numbers, Roman Mendez 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.