Chad Billingsley vs. Ed Donnelly — Career Comparison

Looking at the career totals, Chad Billingsley and Ed Donnelly are fairly close on the surface numbers. Chad Billingsley posted stronger numbers in ERA (3.72 vs 4.03) and WHIP (1.396 vs 1.534). Ed Donnelly had the advantage in home runs allowed (0.41 per nine innings vs 0.68). By the career numbers, Chad Billingsley 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.