Jim Lewis vs. Mason Thompson — Career Comparison

Looking at the career totals, Jim Lewis and Mason Thompson are fairly close on the surface numbers. Mason Thompson posted stronger numbers in WHIP (1.667 vs 2.077) and home runs allowed (0.87 per nine innings vs 1.38). Jim Lewis had the advantage in ERA (4.15 vs 5.21). By the career numbers, Mason 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.