Clay Christiansen vs. Francisco de la Rosa — Career Comparison

Looking at the career totals, Clay Christiansen and Francisco de la Rosa are fairly close on the surface numbers. Francisco de la Rosa posted stronger numbers in ERA (4.5 vs 6.05) and home runs allowed (0 per nine innings vs 0.93). Clay Christiansen had the advantage in WHIP (1.603 vs 2.000). By the career numbers, Francisco de la Rosa 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.