Rick Greene vs. Denny O'Toole — Career Comparison

Looking at the career totals, Rick Greene and Denny O'Toole are fairly close on the surface numbers. Rick Greene posted stronger numbers in ERA (4.76 vs 5.04) and WHIP (1.412 vs 1.747). Denny O'Toole had the advantage in home runs allowed (0.89 per nine innings vs 3.18). By the career numbers, Rick Greene 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.