Matt Cain vs. Ed Donnelly — Career Comparison

Looking at the career totals, Matt Cain and Ed Donnelly are fairly close on the surface numbers. Matt Cain posted stronger numbers in ERA (3.68 vs 4.03) and WHIP (1.248 vs 1.534). Ed Donnelly had the advantage in home runs allowed (0.41 per nine innings vs 0.91). By the career numbers, Matt Cain 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.