Jay Aldrich vs. William Parson — Career Comparison

Looking at the career totals, Jay Aldrich and William Parson are fairly close on the surface numbers. Jay Aldrich posted stronger numbers in ERA (4.72 vs 4.92) and WHIP (1.537 vs 1.856). William Parson had the advantage in home runs allowed (0.6 per nine innings vs 0.99). By the career numbers, Jay Aldrich 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.