Tim Mayza vs. Jim Peterson — Career Comparison

Looking at the career totals, Tim Mayza and Jim Peterson are fairly close on the surface numbers. Tim Mayza posted stronger numbers in ERA (3.87 vs 5.27) and WHIP (1.326 vs 1.665). Jim Peterson had the advantage in home runs allowed (0.74 per nine innings vs 0.99). By the career numbers, Tim Mayza 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.