Wei-Yin Chen vs. Roy Witherup — Career Comparison

Looking at the career totals, Wei-Yin Chen and Roy Witherup are fairly close on the surface numbers. Wei-Yin Chen posted stronger numbers in ERA (4.18 vs 4.44) and WHIP (1.289 vs 1.454). Roy Witherup had the advantage in home runs allowed (0.17 per nine innings vs 1.32). By the career numbers, Wei-Yin Chen 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.