Thomas Hatch vs. Unknown Walker — Career Comparison

On the career pitching numbers, Unknown Walker posted a stronger line than Thomas Hatch. Unknown Walker posted stronger numbers in ERA (0 vs 5.24) and WHIP (1.154 vs 1.621). By the career numbers, Unknown Walker 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.