Unknown Clark vs. Ken Heintzelman — Career Comparison

Looking at the career totals, Unknown Clark and Ken Heintzelman are fairly close on the surface numbers. Ken Heintzelman posted stronger numbers in ERA (3.93 vs 7.5) and WHIP (1.445 vs 1.500). Unknown Clark had the advantage in home runs allowed (0 per nine innings vs 0.6). By the career numbers, Ken Heintzelman 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.