Ryan Kelly vs. John Mackinson — Career Comparison

Looking at the career totals, Ryan Kelly and John Mackinson are fairly close on the surface numbers. Ryan Kelly posted stronger numbers in ERA (7.02 vs 7.36) and WHIP (1.620 vs 1.773). John Mackinson had the advantage in home runs allowed (1.23 per nine innings vs 2.7). By the career numbers, Ryan 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.