Dan O'Brien vs. Carlos Reyes — Career Comparison

Looking at the career totals, Dan O'Brien and Carlos Reyes are fairly close on the surface numbers. Carlos Reyes posted stronger numbers in ERA (4.66 vs 5.9) and WHIP (1.464 vs 1.931). Dan O'Brien had the advantage in home runs allowed (0.31 per nine innings vs 1.39). By the career numbers, Carlos Reyes 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.