Unknown Hamilton vs. John Roper — Career Comparison

Looking at the career totals, Unknown Hamilton and John Roper are fairly close on the surface numbers. John Roper posted stronger numbers in ERA (5.35 vs 8.1) and WHIP (1.511 vs 2.400). Unknown Hamilton had the advantage in home runs allowed (0 per nine innings vs 1.45). By the career numbers, John Roper 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.