Jonathan Heasley vs. Luis Tiant — Career Comparison

On the career pitching numbers, Luis Tiant posted a stronger line than Jonathan Heasley. Luis Tiant posted stronger numbers in ERA (3.3 vs 5.89) and WHIP (1.214 vs 1.475). By the career numbers, Luis Tiant 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.