Fred Hayner vs. Henry Thielman — Career Comparison

On the career pitching numbers, Henry Thielman posted a stronger line than Fred Hayner. Henry Thielman posted stronger numbers in ERA (3.37 vs 13.5) and WHIP (1.374 vs 3.000). By the career numbers, Henry Thielman 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.