Robert Gasser vs. Bump Hadley — Career Comparison

Looking at the career totals, Robert Gasser and Bump Hadley are fairly close on the surface numbers. Robert Gasser posted stronger numbers in ERA (2.67 vs 4.24) and WHIP (1.129 vs 1.501). Bump Hadley had the advantage in home runs allowed (0.51 per nine innings vs 0.8). By the career numbers, Robert Gasser 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.