Diomedes Olivo vs. Joe Rogalski — Career Comparison

Looking at the career totals, Diomedes Olivo and Joe Rogalski are fairly close on the surface numbers. Joe Rogalski posted stronger numbers in ERA (2.57 vs 3.1) and home runs allowed (0 per nine innings vs 0.59). Diomedes Olivo had the advantage in WHIP (1.491 vs 1.714). By the career numbers, Joe Rogalski 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.