John Callahan vs. Lance McCullers — Career Comparison

On the career pitching numbers, Lance McCullers posted a stronger line than John Callahan. Lance McCullers posted stronger numbers in ERA (3.25 vs 16.2) and WHIP (1.370 vs 3.000). By the career numbers, Lance McCullers 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.