Bob Milliken vs. Ryan O'Rourke — Career Comparison

On the career pitching numbers, Bob Milliken posted a stronger line than Ryan O'Rourke. Bob Milliken posted stronger numbers in ERA (3.59 vs 4.84) and WHIP (1.176 vs 1.324). By the career numbers, Bob Milliken 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.