Bill Burwell vs. John Mackinson — Career Comparison

On the career pitching numbers, Bill Burwell posted a stronger line than John Mackinson. Bill Burwell posted stronger numbers in ERA (4.37 vs 7.36) and WHIP (1.521 vs 1.773). By the career numbers, Bill Burwell 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.