John Courtright vs. Luke Jackson — Career Comparison

Looking at the career totals, John Courtright and Luke Jackson are fairly close on the surface numbers. Luke Jackson posted stronger numbers in ERA (4.22 vs 9) and WHIP (1.488 vs 2.000). John Courtright had the advantage in home runs allowed (0 per nine innings vs 0.97). By the career numbers, Luke 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.