Jack Armstrong vs. Ed Pierce — Career Comparison

Looking at the career totals, Jack Armstrong and Ed Pierce are fairly close on the surface numbers. Jack Armstrong posted stronger numbers in WHIP (1.458 vs 2.438) and home runs allowed (1.17 per nine innings vs 1.69). Ed Pierce had the advantage in ERA (3.38 vs 4.58). 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.