Thornton Lee vs. Melido Perez — Career Comparison

On the career pitching numbers, Thornton Lee posted a stronger line than Melido Perez. Thornton Lee posted stronger numbers in ERA (3.56 vs 4.17) and home runs allowed (0.47 per nine innings vs 0.96). By the career numbers, Thornton Lee 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.