James McArthur vs. Allan Simpson — Career Comparison

Looking at the career totals, James McArthur and Allan Simpson are fairly close on the surface numbers. James McArthur posted stronger numbers in ERA (4.84 vs 6.06) and WHIP (1.325 vs 1.694). Allan Simpson had the advantage in home runs allowed (0.92 per nine innings vs 1.13). By the career numbers, James McArthur 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.