Dae-Sung Koo vs. Charles Witherow — Career Comparison

Looking at the career totals, Dae-Sung Koo and Charles Witherow are fairly close on the surface numbers. Dae-Sung Koo posted stronger numbers in ERA (3.91 vs 18) and WHIP (1.565 vs 4.000). Charles Witherow had the advantage in home runs allowed (0 per nine innings vs 0.78). By the career numbers, Dae-Sung Koo 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.