Unknown Allen vs. Charlie Sproull — Career Comparison

Looking at the career totals, Unknown Allen and Charlie Sproull are fairly close on the surface numbers. Charlie Sproull posted stronger numbers in ERA (5.94 vs 40.5) and WHIP (1.826 vs 7.500). Unknown Allen had the advantage in home runs allowed (0 per nine innings vs 0.69). By the career numbers, Charlie Sproull 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.