Duke Esper vs. John Glaiser — Career Comparison

On the career pitching numbers, Duke Esper posted a stronger line than John Glaiser. Duke Esper posted stronger numbers in ERA (4.39 vs 4.91) and home runs allowed (0.24 per nine innings vs 0.61). By the career numbers, Duke Esper 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.