Aroldis Chapman vs. Scott Patterson — Career Comparison

Looking at the career totals, Aroldis Chapman and Scott Patterson are fairly close on the surface numbers. Scott Patterson posted stronger numbers in ERA (1.93 vs 2.52) and home runs allowed (0 per nine innings vs 0.59). Aroldis Chapman had the advantage in WHIP (1.084 vs 1.929). By the career numbers, Scott Patterson 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.