John Flavin vs. Joe Grzenda — Career Comparison

Looking at the career totals, John Flavin and Joe Grzenda are fairly close on the surface numbers. Joe Grzenda posted stronger numbers in ERA (4 vs 13.5) and WHIP (1.562 vs 3.214). John Flavin had the advantage in home runs allowed (0 per nine innings vs 0.58). By the career numbers, Joe Grzenda 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.