John O'Donoghue vs. Chris Seddon — Career Comparison

Looking at the career totals, John O'Donoghue and Chris Seddon are fairly close on the surface numbers. Chris Seddon posted stronger numbers in WHIP (1.541 vs 1.678) and home runs allowed (0.97 per nine innings vs 1.83). John O'Donoghue had the advantage in ERA (4.58 vs 5.47). By the career numbers, Chris Seddon 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.