Rudy Arias vs. Charlie Kerfeld — Career Comparison

Looking at the career totals, Rudy Arias and Charlie Kerfeld are fairly close on the surface numbers. Charlie Kerfeld posted stronger numbers in WHIP (1.572 vs 1.727) and home runs allowed (0.54 per nine innings vs 1.43). Rudy Arias had the advantage in ERA (4.09 vs 4.2). By the career numbers, Charlie Kerfeld 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.