Dennis Leonard vs. Otto Rettig — Career Comparison

Looking at the career totals, Dennis Leonard and Otto Rettig are fairly close on the surface numbers. Dennis Leonard posted stronger numbers in ERA (3.7 vs 4.91) and WHIP (1.279 vs 1.636). Otto Rettig had the advantage in home runs allowed (0 per nine innings vs 0.83). By the career numbers, Dennis Leonard 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.