Deolis Guerra vs. Denny O'Toole — Career Comparison

Looking at the career totals, Deolis Guerra and Denny O'Toole are fairly close on the surface numbers. Deolis Guerra posted stronger numbers in ERA (4.54 vs 5.04) and WHIP (1.239 vs 1.747). Denny O'Toole had the advantage in home runs allowed (0.89 per nine innings vs 1.44). By the career numbers, Deolis Guerra 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.