Jack Armstrong vs. Lynn Nelson — Career Comparison

On the career pitching numbers, Jack Armstrong posted a stronger line than Lynn Nelson. Jack Armstrong posted stronger numbers in ERA (4.58 vs 5.25) and WHIP (1.458 vs 1.535). By the career numbers, Jack Armstrong 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.