John Anderson vs. Grant Hartwig — Career Comparison

On the career pitching numbers, Grant Hartwig posted a stronger line than John Anderson. Grant Hartwig posted stronger numbers in ERA (5.14 vs 6.45) and WHIP (1.429 vs 1.813). By the career numbers, Grant Hartwig 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.