LIFEPHOTOS: Roxbury dog competes in Canine Olympics in BostonHarper with his owner, Lauren Bohs of Roxbury.Courtesy Of Laura BohlsNine-year-old Harper has won a championship this year and placed in four other competitions.Courtesy Of Laura BohlsHarper of Roxbury will compete Saturday in the Jack Russell hurdle race, Eastern Regionals of the Incredible Dog Challenge.Courtesy Of Lauren BohsHarper will compete in the Jack Russell Hurdle RaceCourtesy Of Lauren BohsNot only is Harper a racer but the Jack Russell Terrier is a certified therapy dog.Courtesy Of Lauren BohsLauren Bohs with one of her Jack Russell Terriers.Courtesy Of Lauren Bohs