Lisalverto Bonilla vs. Unknown Hayes — Career Comparison

Looking at the career totals, Lisalverto Bonilla and Unknown Hayes are fairly close on the surface numbers. Lisalverto Bonilla posted stronger numbers in ERA (6.28 vs 7.71) and WHIP (1.570 vs 2.786). Unknown Hayes had the advantage in home runs allowed (0 per nine innings vs 1.57). By the career numbers, Lisalverto Bonilla 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.