Unknown Clark vs. Hilly Hathaway — Career Comparison

Looking at the career totals, Unknown Clark and Hilly Hathaway are fairly close on the surface numbers. Unknown Clark posted stronger numbers in WHIP (1.500 vs 1.730) and home runs allowed (0 per nine innings vs 1). Hilly Hathaway had the advantage in ERA (5.29 vs 7.5). By the career numbers, Unknown Clark 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.