Mark Robison, son of retired Brigham Young University track Coach Clarence Robison, has been named assistant men's track and field coach at BYU, officials said Friday.

Mark Robison fills a vacany left by the promotion of Willard Hirschi to the head track coaching job. Robison was a graduate assistant at BYU this past season, working with the Cougar track and cross country teams.The new BYU assistant also was head track coach at Pleasant Grove High in Utah, a prep cross country coach at Idaho Falls, Idaho, and an assistant track coach at Utah's Provo and Orem high schools.