Unknown Hamilton vs. Jim Rooker — Career Comparison

Looking at the career totals, Unknown Hamilton and Jim Rooker are fairly close on the surface numbers. Jim Rooker posted stronger numbers in ERA (3.46 vs 8.1) and WHIP (1.354 vs 2.400). Unknown Hamilton had the advantage in home runs allowed (0 per nine innings vs 0.64). By the career numbers, Jim Rooker 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.