Jeff Niemann vs. Connie Rector — Career Comparison

Looking at the career totals, Jeff Niemann and Connie Rector are fairly close on the surface numbers. Jeff Niemann posted stronger numbers in ERA (4.08 vs 4.66) and WHIP (1.301 vs 1.454). Connie Rector had the advantage in home runs allowed (0.49 per nine innings vs 1.07). 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.