Rene Arocha vs. Unknown Clark — Career Comparison

Looking at the career totals, Rene Arocha and Unknown Clark are fairly close on the surface numbers. Rene Arocha posted stronger numbers in ERA (4.11 vs 7.5) and WHIP (1.360 vs 1.500). Unknown Clark had the advantage in home runs allowed (0 per nine innings vs 1.01). By the career numbers, Rene Arocha 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.