Robert Stephenson vs. Ed Weiland — Career Comparison

On the career pitching numbers, Robert Stephenson posted a stronger line than Ed Weiland. Robert Stephenson posted stronger numbers in ERA (4.59 vs 8.25) and WHIP (1.368 vs 1.792). By the career numbers, Robert Stephenson 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.