Rick Kester vs. Brian O'Connor — Career Comparison

Looking at the career totals, Rick Kester and Brian O'Connor are fairly close on the surface numbers. Rick Kester posted stronger numbers in WHIP (1.746 vs 1.865) and home runs allowed (0.89 per nine innings vs 1.46). Brian O'Connor had the advantage in ERA (5.11 vs 5.98). By the career numbers, Rick Kester 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.