Nate Cornejo vs. John Jackson — Career Comparison

Looking at the career totals, Nate Cornejo and John Jackson are fairly close on the surface numbers. Nate Cornejo posted stronger numbers in ERA (5.41 vs 6) and WHIP (1.700 vs 2.019). John Jackson had the advantage in home runs allowed (0.5 per nine innings vs 1.09). By the career numbers, Nate Cornejo 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.