Nate Cornejo vs. Jeff Niemann — Career Comparison

On the career pitching numbers, Jeff Niemann posted a stronger line than Nate Cornejo. Jeff Niemann posted stronger numbers in ERA (4.08 vs 5.41) and WHIP (1.301 vs 1.700). By the career numbers, Jeff Niemann 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.