Mark Leiter vs. Sam Thompson — Career Comparison

On the career pitching numbers, Sam Thompson posted a stronger line than Mark Leiter. Sam Thompson posted stronger numbers in ERA (4.41 vs 4.57) and home runs allowed (0.65 per nine innings vs 1.18). By the career numbers, Sam Thompson 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.