Walt Masterson vs. Ray Semproch — Career Comparison

Looking at the career totals, Walt Masterson and Ray Semproch are fairly close on the surface numbers. Walt Masterson posted stronger numbers in ERA (4.15 vs 4.42) and home runs allowed (0.55 per nine innings vs 1.02). Ray Semproch had the advantage in WHIP (1.448 vs 1.515). By the career numbers, Walt Masterson 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.