Cornish, from New Westminster, B.C., had 21 carries for 160 rushing yards and scored on a nine-yard touchdown run late in the fourth quarter to help seal the victory. He also had a 12-yard reception.
Edmonton linebacker Dexter McCoil was named defensive player of the week. He had a career-high seven tackles and added a pass knockdown and an interception to help the Eskimos to a 24-19 win over Saskatchewan.
Eskimos kick returner Kendial Lawrence took the special-teams honour after recording 150 combined return yards and scoring a touchdown.