Ryan Dempster vs. Dave Haas — Career Comparison

On the career pitching numbers, Ryan Dempster posted a stronger line than Dave Haas. Ryan Dempster posted stronger numbers in ERA (4.35 vs 4.84) and WHIP (1.452 vs 1.654). By the career numbers, Ryan Dempster 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.