Tom Brennan vs. Unknown Hamilton — Career Comparison

Looking at the career totals, Tom Brennan and Unknown Hamilton are fairly close on the surface numbers. Tom Brennan posted stronger numbers in ERA (4.4 vs 8.1) and WHIP (1.406 vs 2.400). Unknown Hamilton had the advantage in home runs allowed (0 per nine innings vs 0.82). By the career numbers, Tom Brennan 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.