Bob Milacki vs. Sean O'Sullivan — Career Comparison

On the career pitching numbers, Bob Milacki posted a stronger line than Sean O'Sullivan. Bob Milacki posted stronger numbers in ERA (4.38 vs 6.01) and WHIP (1.426 vs 1.616). By the career numbers, Bob Milacki 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.