Unknown Allison vs. Emmett O'Neill — Career Comparison

Looking at the career totals, Unknown Allison and Emmett O'Neill are fairly close on the surface numbers. Unknown Allison posted stronger numbers in ERA (3 vs 4.76) and WHIP (1.444 vs 1.709). Emmett O'Neill had the advantage in home runs allowed (0.35 per nine innings vs 1). By the career numbers, Unknown Allison 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.