Henry Gruber vs. Lee Guetterman — Career Comparison

On the career pitching numbers, Henry Gruber posted a stronger line than Lee Guetterman. Henry Gruber posted stronger numbers in ERA (3.67 vs 4.33) and home runs allowed (0.31 per nine innings vs 0.71). By the career numbers, Henry Gruber 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.