Chang-Yong Lim vs. Ryan Zeferjahn — Career Comparison

Looking at the career totals, Chang-Yong Lim and Ryan Zeferjahn are fairly close on the surface numbers. Ryan Zeferjahn posted stronger numbers in ERA (4.14 vs 5.4) and WHIP (1.365 vs 2.800). Chang-Yong Lim had the advantage in home runs allowed (0 per nine innings vs 1.46). By the career numbers, Ryan Zeferjahn 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.