Bernie Boland vs. John Jackson — Career Comparison

On the career pitching numbers, Bernie Boland posted a stronger line than John Jackson. Bernie Boland posted stronger numbers in ERA (3.25 vs 6) and WHIP (1.278 vs 2.019). By the career numbers, Bernie Boland 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.