Ken Ash vs. Craig Lefferts — Career Comparison

Looking at the career totals, Ken Ash and Craig Lefferts are fairly close on the surface numbers. Craig Lefferts posted stronger numbers in ERA (3.43 vs 4.96) and WHIP (1.296 vs 1.469). Ken Ash had the advantage in home runs allowed (0.33 per nine innings vs 0.94). By the career numbers, Craig Lefferts 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.