Lisalverto Bonilla vs. John Singleton — Career Comparison

Looking at the career totals, Lisalverto Bonilla and John Singleton are fairly close on the surface numbers. John Singleton posted stronger numbers in ERA (5.9 vs 6.28) and home runs allowed (0.58 per nine innings vs 1.57). Lisalverto Bonilla had the advantage in WHIP (1.570 vs 1.774). By the career numbers, John Singleton 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.