Greg Booker vs. William Parson — Career Comparison

On the career pitching numbers, Greg Booker posted a stronger line than William Parson. Greg Booker posted stronger numbers in ERA (3.89 vs 4.92) and WHIP (1.545 vs 1.856). By the career numbers, Greg Booker 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.