Jason Karnuth vs. John Mackinson — Career Comparison

Looking at the career totals, Jason Karnuth and John Mackinson are fairly close on the surface numbers. Jason Karnuth had the edge in ERA (2.7 vs 7.36). By the career numbers, Jason Karnuth 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.