Robbie Erlin vs. Dave Haas — Career Comparison

On the career pitching numbers, Robbie Erlin posted a stronger line than Dave Haas. Robbie Erlin posted stronger numbers in WHIP (1.297 vs 1.654) and home runs allowed (1.13 per nine innings vs 1.61). By the career numbers, Robbie Erlin 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.