Manny Aybar vs. Tom Williams — Career Comparison

Looking at the career totals, Manny Aybar and Tom Williams are fairly close on the surface numbers. Tom Williams posted stronger numbers in ERA (4.36 vs 5.11) and home runs allowed (0.55 per nine innings vs 1.13). Manny Aybar had the advantage in WHIP (1.522 vs 1.606). By the career numbers, Tom Williams 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.