Pop Andrews vs. Willie Jefferson — Career Comparison

Looking at the career totals, Pop Andrews and Willie Jefferson are fairly close on the surface numbers. Pop Andrews posted stronger numbers in ERA (3.68 vs 3.94) and home runs allowed (0.2 per nine innings vs 0.41). Willie Jefferson had the advantage in WHIP (1.314 vs 1.413). By the career numbers, Pop Andrews 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.