Spencer Arrighetti vs. Lynn Nelson — Career Comparison

Looking at the career totals, Spencer Arrighetti and Lynn Nelson are fairly close on the surface numbers. Spencer Arrighetti posted stronger numbers in ERA (4.69 vs 5.25) and WHIP (1.409 vs 1.535). Lynn Nelson had the advantage in home runs allowed (1.14 per nine innings vs 1.35). By the career numbers, Spencer Arrighetti 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.