Bert Blyleven vs. Mel Parnell — Career Comparison

Looking at the career totals, Bert Blyleven and Mel Parnell are fairly close on the surface numbers. Bert Blyleven posted stronger numbers in ERA (3.31 vs 3.5) and WHIP (1.212 vs 1.413). Mel Parnell had the advantage in home runs allowed (0.53 per nine innings vs 0.78). By the career numbers, Bert Blyleven 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.