Elmer Koestner vs. Scott McGregor — Career Comparison

Looking at the career totals, Elmer Koestner and Scott McGregor are fairly close on the surface numbers. Elmer Koestner posted stronger numbers in ERA (3.18 vs 3.99) and home runs allowed (0 per nine innings vs 0.99). Scott McGregor had the advantage in WHIP (1.303 vs 1.444). By the career numbers, Elmer Koestner 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.