Bill Campbell vs. Efrain Valdez — Career Comparison

Looking at the career totals, Bill Campbell and Efrain Valdez are fairly close on the surface numbers. Bill Campbell posted stronger numbers in WHIP (1.411 vs 1.588) and home runs allowed (0.6 per nine innings vs 1.06). Efrain Valdez had the advantage in ERA (2.91 vs 3.54). By the career numbers, Bill Campbell 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.