PREP FOOTBALLAberdeen Central 7, Sioux Falls Washington 6 Aberdeen Roncalli 42, Redfield/Doland 0 Alcester-Hudson 34, Baltic 6 Andes Central 28, Tripp-Delmont/Armour 12 Arlington 58, Elkton-Lake Benton 14 Avon 76, South Central 27 Bennett County 15, Todd County 6 Beresford 32, Flandreau 0 Bon Homme 18, Canton 6 Bridgewater-Emery/Ethan 54, Mt. Vernon/Plankinton 26 Brookings 28, Huron 7 Canistota 50, Hanson 0 Clark/Willow Lake 52, Waubay/Summit 0 Crow Creek 40, Tiospa Zina Tribal 37 Custer 30, Newcastle, Wyo.