Joan Adon vs. Jim Roberts — Career Comparison

Looking at the career totals, Joan Adon and Jim Roberts are fairly close on the surface numbers. Joan Adon posted stronger numbers in ERA (6.66 vs 7.18) and WHIP (1.723 vs 1.899). Jim Roberts had the advantage in home runs allowed (0.34 per nine innings vs 1.29). By the career numbers, Joan Adon 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.