Mike Kircher vs. Brian O'Connor — Career Comparison

Looking at the career totals, Mike Kircher and Brian O'Connor are fairly close on the surface numbers. Mike Kircher posted stronger numbers in WHIP (1.625 vs 1.865) and home runs allowed (0 per nine innings vs 1.46). Brian O'Connor had the advantage in ERA (5.11 vs 6). By the career numbers, Mike Kircher 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.