Andy O'Connor vs. Sidney Williams — Career Comparison

Looking at the career totals, Andy O'Connor and Sidney Williams are fairly close on the surface numbers. Sidney Williams posted stronger numbers in ERA (4.28 vs 10.13) and WHIP (1.610 vs 2.750). Andy O'Connor had the advantage in home runs allowed (0 per nine innings vs 0.33). By the career numbers, Sidney Williams 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.