Ben Rivera vs. Mysterious Walker — Career Comparison

On the career pitching numbers, Mysterious Walker posted a stronger line than Ben Rivera. Mysterious Walker posted stronger numbers in ERA (4 vs 4.52) and home runs allowed (0.27 per nine innings vs 0.9). By the career numbers, Mysterious Walker 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.