Jose Alvarez vs. William Sullivan — Career Comparison

Looking at the career totals, Jose Alvarez and William Sullivan are fairly close on the surface numbers. Jose Alvarez posted stronger numbers in ERA (2.99 vs 4.5) and WHIP (1.441 vs 1.667). William Sullivan had the advantage in home runs allowed (0 per nine innings vs 0.67). By the career numbers, Jose Alvarez 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.