Unknown Howard vs. John Mackinson — Career Comparison

On the career pitching numbers, Unknown Howard posted a stronger line than John Mackinson. Unknown Howard posted stronger numbers in ERA (2.45 vs 7.36) and WHIP (1.636 vs 1.773). By the career numbers, Unknown Howard 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.