Joe Boyle vs. John Burkett — Career Comparison

On the career pitching numbers, John Burkett posted a stronger line than Joe Boyle. John Burkett posted stronger numbers in ERA (4.31 vs 4.98) and WHIP (1.369 vs 1.444). By the career numbers, John Burkett 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.