Robert Ellis vs. George Mack — Career Comparison

Looking at the career totals, Robert Ellis and George Mack are fairly close on the surface numbers. Robert Ellis posted stronger numbers in ERA (6.03 vs 7.19) and WHIP (1.593 vs 1.890). George Mack had the advantage in home runs allowed (1.05 per nine innings vs 1.53). By the career numbers, Robert Ellis 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.