Harold Hairston vs. John Slappey — Career Comparison

Looking at the career totals, Harold Hairston and John Slappey are fairly close on the surface numbers. Harold Hairston posted stronger numbers in ERA (6.42 vs 7.11) and WHIP (1.390 vs 3.000). John Slappey had the advantage in home runs allowed (0 per nine innings vs 0.99). By the career numbers, Harold Hairston 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.