José Fermin vs. Bob Macdonald — Career Comparison

Looking at the career totals, José Fermin and Bob Macdonald are fairly close on the surface numbers. Bob Macdonald posted stronger numbers in ERA (4.34 vs 4.46) and home runs allowed (1 per nine innings vs 2.1). José Fermin had the advantage in WHIP (1.456 vs 1.506). By the career numbers, Bob Macdonald 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.