Lefty Boone vs. Frank Stewart — Career Comparison

Looking at the career totals, Lefty Boone and Frank Stewart are fairly close on the surface numbers. Lefty Boone posted stronger numbers in ERA (5.87 vs 9) and WHIP (1.638 vs 2.250). Frank Stewart had the advantage in home runs allowed (0 per nine innings vs 0.2). By the career numbers, Lefty Boone 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.