Roberto Osuna vs. Steve Stemle — Career Comparison

Looking at the career totals, Roberto Osuna and Steve Stemle are fairly close on the surface numbers. Roberto Osuna posted stronger numbers in ERA (2.74 vs 8.64) and WHIP (0.924 vs 1.920). Steve Stemle had the advantage in home runs allowed (0.54 per nine innings vs 0.8). By the career numbers, Roberto Osuna 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.