Ryan Cook vs. Tyler Robertson — Career Comparison

On the career pitching numbers, Ryan Cook posted a stronger line than Tyler Robertson. Ryan Cook posted stronger numbers in ERA (3.58 vs 5.54) and WHIP (1.272 vs 1.500). By the career numbers, Ryan Cook 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.