William Parson vs. Ryan Perry — Career Comparison

Looking at the career totals, William Parson and Ryan Perry are fairly close on the surface numbers. Ryan Perry posted stronger numbers in ERA (4.36 vs 4.92) and WHIP (1.506 vs 1.856). William Parson had the advantage in home runs allowed (0.6 per nine innings vs 0.85). By the career numbers, Ryan Perry 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.