Jose Acosta vs. Mike Kelly — Career Comparison

Looking at the career totals, Jose Acosta and Mike Kelly are fairly close on the surface numbers. Jose Acosta posted stronger numbers in ERA (4.51 vs 9.45) and WHIP (1.561 vs 1.950). Mike Kelly had the advantage in home runs allowed (0 per nine innings vs 0.38). By the career numbers, Jose Acosta 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.