Jose Acosta vs. Clayton Mortensen — Career Comparison

Looking at the career totals, Jose Acosta and Clayton Mortensen are fairly close on the surface numbers. Jose Acosta posted stronger numbers in ERA (4.51 vs 4.68) and home runs allowed (0.38 per nine innings vs 1.4). Clayton Mortensen had the advantage in WHIP (1.470 vs 1.561). By the career numbers, Jose Acosta 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.