Joel Johnston vs. Ryan Zeferjahn — Career Comparison

Looking at the career totals, Joel Johnston and Ryan Zeferjahn are fairly close on the surface numbers. Joel Johnston posted stronger numbers in WHIP (1.296 vs 1.365) and home runs allowed (1.05 per nine innings vs 1.46). Ryan Zeferjahn had the advantage in ERA (4.14 vs 4.31). By the career numbers, Joel Johnston 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.