Unknown Hamilton vs. Nate Robertson — Career Comparison

Looking at the career totals, Unknown Hamilton and Nate Robertson are fairly close on the surface numbers. Nate Robertson posted stronger numbers in ERA (5.01 vs 8.1) and WHIP (1.493 vs 2.400). Unknown Hamilton 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.