Zach McClellan vs. Ted Olson — Career Comparison

Looking at the career totals, Zach McClellan and Ted Olson are fairly close on the surface numbers. Zach McClellan posted stronger numbers in ERA (5.79 vs 7.18) and home runs allowed (0 per nine innings vs 1.09). Ted Olson had the advantage in WHIP (1.734 vs 1.929). By the career numbers, Zach McClellan 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.