Charlie Robertson vs. Harry Thompson — Career Comparison

Looking at the career totals, Charlie Robertson and Harry Thompson are fairly close on the surface numbers. Harry Thompson posted stronger numbers in ERA (4.23 vs 4.44) and WHIP (1.355 vs 1.518). Charlie Robertson had the advantage in home runs allowed (0.34 per nine innings vs 0.65). By the career numbers, Harry Thompson 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.