Keith MacWhorter vs. Randy Niemann — Career Comparison

On the career pitching numbers, Randy Niemann posted a stronger line than Keith MacWhorter. Randy Niemann posted stronger numbers in ERA (4.64 vs 5.53) and home runs allowed (0.36 per nine innings vs 0.64). By the career numbers, Randy 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.