William Parson vs. Doug Slaten — Career Comparison

Looking at the career totals, William Parson and Doug Slaten are fairly close on the surface numbers. Doug Slaten posted stronger numbers in ERA (3.52 vs 4.92) and WHIP (1.527 vs 1.856). William Parson had the advantage in home runs allowed (0.6 per nine innings vs 0.9). By the career numbers, Doug Slaten 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.