Lisalverto Bonilla vs. Bob Heffner — Career Comparison

On the career pitching numbers, Bob Heffner posted a stronger line than Lisalverto Bonilla. Bob Heffner posted stronger numbers in ERA (4.51 vs 6.28) and WHIP (1.347 vs 1.570). By the career numbers, Bob Heffner 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.