Mark DiFelice vs. Grant Jackson — Career Comparison

Looking at the career totals, Mark DiFelice and Grant Jackson are fairly close on the surface numbers. Grant Jackson posted stronger numbers in ERA (3.46 vs 3.79) and home runs allowed (0.72 per nine innings vs 1.34). Mark DiFelice had the advantage in WHIP (1.303 vs 1.365). By the career numbers, Grant Jackson 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.