Alex Singleton vs. Billy Wagner — Career Comparison

Looking at the career totals, Alex Singleton and Billy Wagner are fairly close on the surface numbers. Billy Wagner posted stronger numbers in ERA (2.31 vs 6.75) and WHIP (1.027 vs 2.250). Alex Singleton had the advantage in home runs allowed (0 per nine innings vs 0.82). By the career numbers, Billy Wagner 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.