John Foley vs. Glen Perkins — Career Comparison

Looking at the career totals, John Foley and Glen Perkins are fairly close on the surface numbers. Glen Perkins posted stronger numbers in ERA (3.88 vs 4.5) and WHIP (1.309 vs 1.375). John Foley had the advantage in home runs allowed (0 per nine innings vs 1.07). By the career numbers, Glen 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.