Nate Robertson vs. Vern Underhill — Career Comparison

Looking at the career totals, Nate Robertson and Vern Underhill are fairly close on the surface numbers. Nate Robertson posted stronger numbers in ERA (5.01 vs 5.7) and WHIP (1.493 vs 2.092). Vern Underhill had the advantage in home runs allowed (0 per nine innings vs 1.25). By the career numbers, Nate Robertson 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.