Jim Lewis vs. Rich Robertson — Career Comparison

Looking at the career totals, Jim Lewis and Rich Robertson are fairly close on the surface numbers. Jim Lewis posted stronger numbers in WHIP (1.482 vs 1.631) and home runs allowed (0.55 per nine innings vs 0.92). Rich Robertson had the advantage in ERA (4.94 vs 5.79). By the career numbers, Jim Lewis 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.