Darold Knowles vs. John Roach — Career Comparison

Looking at the career totals, Darold Knowles and John Roach are fairly close on the surface numbers. Darold Knowles posted stronger numbers in ERA (3.12 vs 11.25) and WHIP (1.439 vs 2.750). John Roach had the advantage in home runs allowed (0 per nine innings vs 0.54). By the career numbers, Darold Knowles 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.