Francisco de la Rosa vs. John Glaiser — Career Comparison

Looking at the career totals, Francisco de la Rosa and John Glaiser are fairly close on the surface numbers. Francisco de la Rosa posted stronger numbers in ERA (4.5 vs 4.91) and home runs allowed (0 per nine innings vs 0.61). John Glaiser had the advantage in WHIP (1.568 vs 2.000). By the career numbers, Francisco de la Rosa 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.