Jordan Leasure vs. Michael Petersen — Career Comparison

Looking at the career totals, Jordan Leasure and Michael Petersen are fairly close on the surface numbers. Jordan Leasure posted stronger numbers in ERA (4.7 vs 5.02) and WHIP (1.359 vs 1.593). Michael Petersen had the advantage in home runs allowed (1.43 per nine innings vs 1.69). By the career numbers, Jordan Leasure 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.