Ken Robinson vs. Grant Thatcher — Career Comparison

Looking at the career totals, Ken Robinson and Grant Thatcher are fairly close on the surface numbers. Grant Thatcher posted stronger numbers in ERA (3.16 vs 3.91) and home runs allowed (0.24 per nine innings vs 1.49). Ken Robinson had the advantage in WHIP (1.303 vs 1.378). By the career numbers, Grant Thatcher 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.