Kyle Keller vs. Rex Smith — Career Comparison

Looking at the career totals, Kyle Keller and Rex Smith are fairly close on the surface numbers. Rex Smith posted stronger numbers in ERA (5.5 vs 5.83) and home runs allowed (0 per nine innings vs 2.33). Kyle Keller had the advantage in WHIP (1.554 vs 2.111). By the career numbers, Rex Smith 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.