Bernie Duffy vs. Andy Sonnanstine — Career Comparison

Looking at the career totals, Bernie Duffy and Andy Sonnanstine are fairly close on the surface numbers. Andy Sonnanstine posted stronger numbers in ERA (5.26 vs 5.56) and WHIP (1.414 vs 1.853). Bernie Duffy had the advantage in home runs allowed (0 per nine innings vs 1.32). By the career numbers, Andy Sonnanstine 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.