Luis Perdomo vs. Jen-Ho Tseng — Career Comparison

Looking at the career totals, Luis Perdomo and Jen-Ho Tseng are fairly close on the surface numbers. Luis Perdomo posted stronger numbers in ERA (5.12 vs 9) and home runs allowed (1.1 per nine innings vs 3.38). Jen-Ho Tseng had the advantage in WHIP (1.375 vs 1.526). By the career numbers, Luis Perdomo 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.