Grant Holmes vs. Unknown O'Rourke — Career Comparison

Looking at the career totals, Grant Holmes and Unknown O'Rourke are fairly close on the surface numbers. Grant Holmes posted stronger numbers in ERA (3.83 vs 8) and WHIP (1.298 vs 2.000). Unknown O'Rourke had the advantage in home runs allowed (0 per nine innings vs 1.13). By the career numbers, Grant Holmes 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.