Joe Callahan vs. John Mickey — Career Comparison

Looking at the career totals, Joe Callahan and John Mickey are fairly close on the surface numbers. Joe Callahan posted stronger numbers in WHIP (1.639 vs 1.909) and home runs allowed (0.28 per nine innings vs 1.23). John Mickey had the advantage in ERA (6.14 vs 6.4). By the career numbers, Joe Callahan 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.