Jeremy Affeldt vs. Kyle Martin — Career Comparison

Looking at the career totals, Jeremy Affeldt and Kyle Martin are fairly close on the surface numbers. Jeremy Affeldt posted stronger numbers in WHIP (1.448 vs 1.714) and home runs allowed (0.74 per nine innings vs 3.86). Kyle Martin had the advantage in ERA (3.86 vs 3.97). By the career numbers, Jeremy Affeldt 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.