Mark Mercer vs. Mike Zagurski — Career Comparison

Looking at the career totals, Mark Mercer and Mike Zagurski are fairly close on the surface numbers. Mark Mercer had the edge in ERA (4.7 vs 7.78). 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.