George Estock vs. John Mackinson — Career Comparison

On the career pitching numbers, George Estock posted a stronger line than John Mackinson. George Estock posted stronger numbers in ERA (4.33 vs 7.36) and WHIP (1.541 vs 1.773). By the career numbers, George Estock 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.