John DeSilva vs. Art Lopatka — Career Comparison

On the career pitching numbers, Art Lopatka posted a stronger line than John DeSilva. Art Lopatka posted stronger numbers in ERA (6.35 vs 7.2) and home runs allowed (0.53 per nine innings vs 1.8). By the career numbers, Art Lopatka 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.