Wily Peralta vs. Stan Spencer — Career Comparison

Looking at the career totals, Wily Peralta and Stan Spencer are fairly close on the surface numbers. Wily Peralta posted stronger numbers in ERA (4.29 vs 5.54) and home runs allowed (1.09 per nine innings vs 1.74). Stan Spencer had the advantage in WHIP (1.390 vs 1.458). By the career numbers, Wily Peralta 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.