Oscar Horstmann vs. Robert Ray — Career Comparison

On the career pitching numbers, Oscar Horstmann posted a stronger line than Robert Ray. Oscar Horstmann posted stronger numbers in ERA (3.67 vs 4.18) and home runs allowed (0.25 per nine innings vs 1.29). By the career numbers, Oscar Horstmann 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.