Rocky Childress vs. Tyler Olson — Career Comparison

Looking at the career totals, Rocky Childress and Tyler Olson are fairly close on the surface numbers. Tyler Olson had the edge in ERA (3.83 vs 4.76). By the career numbers, Tyler Olson 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.