Mark Prior vs. Antonio Ruiz — Career Comparison

Looking at the career totals, Mark Prior and Antonio Ruiz are fairly close on the surface numbers. Antonio Ruiz posted stronger numbers in ERA (3.27 vs 3.51) and home runs allowed (0.28 per nine innings vs 1.05). Mark Prior had the advantage in WHIP (1.240 vs 1.453). By the career numbers, Antonio Ruiz 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.