John Hibbard vs. Ryan Zeferjahn — Career Comparison

Looking at the career totals, John Hibbard and Ryan Zeferjahn are fairly close on the surface numbers. John Hibbard posted stronger numbers in ERA (2.65 vs 4.14) and home runs allowed (0.53 per nine innings vs 1.46). Ryan Zeferjahn had the advantage in WHIP (1.365 vs 1.588). By the career numbers, John Hibbard 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.