Miguel Diaz vs. Ronny Miller — Career Comparison

Looking at the career totals, Miguel Diaz and Ronny Miller are fairly close on the surface numbers. Ronny Miller posted stronger numbers in ERA (4.5 vs 4.81) and home runs allowed (0 per nine innings vs 1.55). Miguel Diaz had the advantage in WHIP (1.374 vs 1.500). By the career numbers, Ronny Miller 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.