Robert Coello vs. Biff Wysong — Career Comparison

Looking at the career totals, Robert Coello and Biff Wysong are fairly close on the surface numbers. Robert Coello posted stronger numbers in ERA (5.9 vs 7.18) and WHIP (1.552 vs 2.147). Biff Wysong had the advantage in home runs allowed (0.5 per nine innings vs 0.93). By the career numbers, Robert Coello 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.