Bob Glenn vs. Wilson Heredia — Career Comparison

On the career pitching numbers, Bob Glenn posted a stronger line than Wilson Heredia. Bob Glenn posted stronger numbers in ERA (0 vs 3.41) and WHIP (1.000 vs 1.768). By the career numbers, Bob Glenn 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.