He played junior hockey for the Edmonton Oil Kings until 1970, when he joined the Alberta Golden Bears. Moores also played briefly for the Long Island Ducks, retiring in 1973. Moores joined the Golden Bears coaching staff as an assistant in 1976 and stayed there for 17 years. He served several times as head coach when Clare Drake took a leave of absence before becoming the permanent head coach in 1990. In his seven years as head coach he compiled a record of 220-83-23 and won two University Cups in 1980 and 1992. He was the Canada West Universities Athletic Association coach of the year in 1989, 1990, 1991, and 1993, and the Canadian Interuniversity Sport's coach of the year in 1980 and 1991.