Nick Robertson vs. Charles Witherow — Career Comparison

Looking at the career totals, Nick Robertson and Charles Witherow are fairly close on the surface numbers. Nick Robertson posted stronger numbers in ERA (5.3 vs 18) and WHIP (1.626 vs 4.000). Charles Witherow had the advantage in home runs allowed (0 per nine innings vs 1.51). By the career numbers, Nick Robertson 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.