Bill Pertica vs. Glenn Spencer — Career Comparison

Looking at the career totals, Bill Pertica and Glenn Spencer are fairly close on the surface numbers. Bill Pertica posted stronger numbers in ERA (4.27 vs 4.53) and home runs allowed (0.38 per nine innings vs 0.62). Glenn Spencer had the advantage in WHIP (1.478 vs 1.535). By the career numbers, Bill Pertica 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.