Ravelo Manzanillo vs. Willis Roberts — Career Comparison

Looking at the career totals, Ravelo Manzanillo and Willis Roberts are fairly close on the surface numbers. Ravelo Manzanillo posted stronger numbers in ERA (4.43 vs 4.64) and home runs allowed (0.71 per nine innings vs 0.94). Willis Roberts had the advantage in WHIP (1.521 vs 1.841). By the career numbers, Ravelo Manzanillo 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.