Unknown Bookman vs. Mel Parnell — Career Comparison

Looking at the career totals, Unknown Bookman and Mel Parnell are fairly close on the surface numbers. Mel Parnell posted stronger numbers in ERA (3.5 vs 27) and WHIP (1.413 vs 4.500). Unknown Bookman had the advantage in home runs allowed (0 per nine innings vs 0.53). By the career numbers, Mel Parnell 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.