Alex Singleton vs. Jeff Wallace — Career Comparison

Looking at the career totals, Alex Singleton and Jeff Wallace are fairly close on the surface numbers. Jeff Wallace posted stronger numbers in ERA (4.2 vs 6.75) and WHIP (1.745 vs 2.250). Alex Singleton had the advantage in home runs allowed (0 per nine innings vs 0.72). By the career numbers, Jeff Wallace 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.