John Duffie vs. Claude Osteen — Career Comparison

Looking at the career totals, John Duffie and Claude Osteen are fairly close on the surface numbers. Claude Osteen posted stronger numbers in WHIP (1.302 vs 1.655) and home runs allowed (0.65 per nine innings vs 0.93). John Duffie had the advantage in ERA (2.79 vs 3.3). By the career numbers, Claude Osteen 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.