Jose Acosta vs. Matt Karchner — Career Comparison

Looking at the career totals, Jose Acosta and Matt Karchner are fairly close on the surface numbers. Jose Acosta posted stronger numbers in WHIP (1.561 vs 1.641) and home runs allowed (0.38 per nine innings vs 1.12). Matt Karchner had the advantage in ERA (4.21 vs 4.51). 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.