Tommy Greene vs. Lou Koupal — Career Comparison

Looking at the career totals, Tommy Greene and Lou Koupal are fairly close on the surface numbers. Tommy Greene posted stronger numbers in ERA (4.14 vs 5.58) and WHIP (1.342 vs 1.765). Lou Koupal had the advantage in home runs allowed (0.62 per nine innings vs 0.89). By the career numbers, Tommy Greene 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.