Ben Callahan vs. Junior Guerra — Career Comparison

Looking at the career totals, Ben Callahan and Junior Guerra are fairly close on the surface numbers. Junior Guerra posted stronger numbers in ERA (4.06 vs 12.54) and WHIP (1.362 vs 2.571). Ben Callahan had the advantage in home runs allowed (0 per nine innings vs 1.17). By the career numbers, Junior Guerra 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.