Ronald Belisario vs. W. Williams — Career Comparison

Looking at the career totals, Ronald Belisario and W. Williams are fairly close on the surface numbers. Ronald Belisario posted stronger numbers in ERA (3.85 vs 6.35) and WHIP (1.382 vs 1.765). W. Williams had the advantage in home runs allowed (0 per nine innings vs 0.53). By the career numbers, Ronald Belisario 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.