Ben Callahan vs. Ed Donnelly — Career Comparison

Looking at the career totals, Ben Callahan and Ed Donnelly are fairly close on the surface numbers. Ed Donnelly posted stronger numbers in ERA (4.03 vs 12.54) and WHIP (1.534 vs 2.571). Ben Callahan had the advantage in home runs allowed (0 per nine innings vs 0.41). By the career numbers, Ed Donnelly 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.