Billy Hart vs. Roberto Hernandez — Career Comparison

Looking at the career totals, Billy Hart and Roberto Hernandez are fairly close on the surface numbers. Billy Hart posted stronger numbers in WHIP (1.262 vs 1.416) and home runs allowed (0.27 per nine innings vs 0.81). Roberto Hernandez had the advantage in ERA (3.45 vs 3.67). By the career numbers, Billy Hart 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.