Keith Comstock vs. Dan O'Brien — Career Comparison

Looking at the career totals, Keith Comstock and Dan O'Brien are fairly close on the surface numbers. Keith Comstock posted stronger numbers in ERA (4.06 vs 5.9) and WHIP (1.451 vs 1.931). Dan O'Brien had the advantage in home runs allowed (0.31 per nine innings vs 0.82). By the career numbers, Keith Comstock 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.