Les Mueller vs. Al Pratt — Career Comparison

Looking at the career totals, Les Mueller and Al Pratt are fairly close on the surface numbers. Les Mueller posted stronger numbers in ERA (3.78 vs 4.41) and WHIP (1.314 vs 1.535). Al Pratt had the advantage in home runs allowed (0.33 per nine innings vs 0.55). By the career numbers, Les Mueller 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.