Chang-Yong Lim vs. Mark Mercer — Career Comparison

Looking at the career totals, Chang-Yong Lim and Mark Mercer are fairly close on the surface numbers. Mark Mercer posted stronger numbers in ERA (4.7 vs 5.4) and WHIP (1.826 vs 2.800). Chang-Yong Lim had the advantage in home runs allowed (0 per nine innings vs 1.17). By the career numbers, Mark Mercer 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.