Hal Kelleher vs. Denny O'Toole — Career Comparison

Looking at the career totals, Hal Kelleher and Denny O'Toole are fairly close on the surface numbers. Denny O'Toole posted stronger numbers in ERA (5.04 vs 5.95) and WHIP (1.747 vs 1.894). Hal Kelleher had the advantage in home runs allowed (0.33 per nine innings vs 0.89). By the career numbers, Denny O'Toole 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.