Bernie Duffy vs. Art Lopatka — Career Comparison

Looking at the career totals, Bernie Duffy and Art Lopatka are fairly close on the surface numbers. Bernie Duffy posted stronger numbers in ERA (5.56 vs 6.35) and home runs allowed (0 per nine innings vs 0.53). Art Lopatka had the advantage in WHIP (1.588 vs 1.853). By the career numbers, Bernie Duffy 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.