Al Pratt vs. Roy S. Williams — Career Comparison

On the career pitching numbers, Al Pratt posted a stronger line than Roy S. Williams. Al Pratt posted stronger numbers in ERA (4.41 vs 5.69) and home runs allowed (0.33 per nine innings vs 0.77). By the career numbers, Al Pratt 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.