Jay Marshall vs. Colin Selby — Career Comparison

Looking at the career totals, Jay Marshall and Colin Selby are fairly close on the surface numbers. Colin Selby posted stronger numbers in ERA (6.2 vs 7.66) and WHIP (1.556 vs 1.845). Jay Marshall had the advantage in home runs allowed (0.73 per nine innings vs 1.2). By the career numbers, Colin Selby 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.