Francisco Liriano vs. Otto Rettig — Career Comparison

Looking at the career totals, Francisco Liriano and Otto Rettig are fairly close on the surface numbers. Francisco Liriano posted stronger numbers in ERA (4.15 vs 4.91) and WHIP (1.367 vs 1.636). Otto Rettig had the advantage in home runs allowed (0 per nine innings vs 0.91). By the career numbers, Francisco Liriano 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.