William Parson vs. Trevor Stephan — Career Comparison

Looking at the career totals, William Parson and Trevor Stephan are fairly close on the surface numbers. Trevor Stephan posted stronger numbers in ERA (3.73 vs 4.92) and WHIP (1.313 vs 1.856). William Parson had the advantage in home runs allowed (0.6 per nine innings vs 1.1). By the career numbers, Trevor Stephan 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.