Jason Isringhausen vs. Rex Smith — Career Comparison

Looking at the career totals, Jason Isringhausen and Rex Smith are fairly close on the surface numbers. Jason Isringhausen posted stronger numbers in ERA (3.64 vs 5.5) and WHIP (1.370 vs 2.111). Rex Smith had the advantage in home runs allowed (0 per nine innings vs 0.76). By the career numbers, Jason Isringhausen 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.