Michael Kelly vs. Billy McCool — Career Comparison

Looking at the career totals, Michael Kelly and Billy McCool are fairly close on the surface numbers. Michael Kelly posted stronger numbers in ERA (3.04 vs 3.59) and WHIP (1.287 vs 1.467). Billy McCool had the advantage in home runs allowed (0.53 per nine innings vs 0.79). By the career numbers, Michael Kelly 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.