Jack Aker vs. Les Henderson — Career Comparison

Looking at the career totals, Jack Aker and Les Henderson are fairly close on the surface numbers. Les Henderson posted stronger numbers in ERA (0 vs 3.28) and home runs allowed (0 per nine innings vs 0.77). Jack Aker had the advantage in WHIP (1.369 vs 3.000). By the career numbers, Les Henderson 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.