Adam Peterson vs. Charlie Vaughan — Career Comparison

Looking at the career totals, Adam Peterson and Charlie Vaughan are fairly close on the surface numbers. Charlie Vaughan posted stronger numbers in ERA (4.5 vs 5.46) and home runs allowed (0 per nine innings vs 1.39). Adam Peterson had the advantage in WHIP (1.516 vs 1.875). By the career numbers, Charlie Vaughan 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.