Kei Igawa vs. Eduardo Valdés Pérez — Career Comparison

Looking at the career totals, Kei Igawa and Eduardo Valdés Pérez are fairly close on the surface numbers. Kei Igawa posted stronger numbers in ERA (6.66 vs 10.8) and WHIP (1.772 vs 2.040). Eduardo Valdés Pérez had the advantage in home runs allowed (0 per nine innings vs 1.88). By the career numbers, Kei Igawa 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.