John Sullivan vs. Lewis Woolfolk — Career Comparison

Looking at the career totals, John Sullivan and Lewis Woolfolk are fairly close on the surface numbers. John Sullivan posted stronger numbers in ERA (4.2 vs 5.08) and home runs allowed (0 per nine innings vs 0.23). Lewis Woolfolk had the advantage in WHIP (1.506 vs 2.133). By the career numbers, John Sullivan 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.