Mark Mercer vs. Ashur Tolliver — Career Comparison

On the career pitching numbers, Ashur Tolliver posted a stronger line than Mark Mercer. Ashur Tolliver posted stronger numbers in WHIP (1.655 vs 1.826) and home runs allowed (0.93 per nine innings vs 1.17). By the career numbers, Ashur Tolliver 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.