James Cooper vs. Dan Perkins — Career Comparison

Looking at the career totals, James Cooper and Dan Perkins are fairly close on the surface numbers. Dan Perkins posted stronger numbers in ERA (6.54 vs 9) and WHIP (1.846 vs 2.167). James Cooper had the advantage in home runs allowed (1.13 per nine innings vs 1.45). By the career numbers, Dan Perkins 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.