Manny Aybar vs. Ray Kerr — Career Comparison

Looking at the career totals, Manny Aybar and Ray Kerr are fairly close on the surface numbers. Manny Aybar posted stronger numbers in ERA (5.11 vs 5.3) and home runs allowed (1.13 per nine innings vs 1.66). Ray Kerr had the advantage in WHIP (1.436 vs 1.522). By the career numbers, Manny Aybar 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.