Ed Pierce vs. Glenn Spencer — Career Comparison

Looking at the career totals, Ed Pierce and Glenn Spencer are fairly close on the surface numbers. Glenn Spencer posted stronger numbers in WHIP (1.478 vs 2.438) and home runs allowed (0.62 per nine innings vs 1.69). Ed Pierce had the advantage in ERA (3.38 vs 4.53). By the career numbers, Glenn Spencer 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.