Jason Christiansen vs. Tyler Robertson — Career Comparison

On the career pitching numbers, Jason Christiansen posted a stronger line than Tyler Robertson. Jason Christiansen posted stronger numbers in ERA (4.3 vs 5.54) and home runs allowed (0.77 per nine innings vs 1.73). By the career numbers, Jason Christiansen 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.