2017 was another very competitive season for the Canadian Football League, as all but two teams won at least 7 games. Galgary would lead the way in the West with an impressive 13-4-1 record, with both Winnipeg and Edmonton following close behind with identical 12-6 records. Toronto would win the East with only a 9-9 record, one-half game over Ottawa. In the first round of the playoffs, it was Saskatchewan over Ottawa 31-20, while Edmonton would outlast Winnipeg 39-32. In the Division Finals, it was Toronto over Saskatchewan 25-21, while Calgary would take care of Edmonton 32-28, setting up the match-ups for the 105th Grey Cup Championship. The 105th Grey Cup was played on November 26, 2017 between the Calgary Stampeders and the Toronto Argonauts at TD Place Stadium in Ottawa, Ontario. The Argos won the game 27–24 and captured their 17th Grey Cup championship. Toronto won the coin toss and opted to defer to the second half. Calgary chose to receive the ball. The game was played in inclement conditions, with snow falling prior to kickoff and persisting throughout. Neither team could sustain drives throughout much of the first quarter until eleven minutes in, when Stamps quarterback Bo Levi Mitchell connected with Kamar Jorden for the contest's first touchdown. Calgary missed the subsequent two-point convert attempt, but found themselves up 6–0. Scrimmaging from their own 10-yard line, the Argos opened the second quarter with a bang. DeVier Posey caught a pass from Toronto quarterback Ricky Ray at the Argo 44 and scampered to the end zone to tie the game 6–6. At 100 yards, this now stands as the longest touchdown pass in Grey Cup history, breaking the previous mark of 99 yards set by Montreal's Anthony Calvillo and Pat Woodcock in 2002. Calgary would respond five minutes later with a touchdown by running back Jerome Messam and a successful two-point convert to go up 14-6. While the Argos were shut out offensively in the second quarter, they scored two points thanks to a safety
conceded by Calgary punter Rob Maver who, after mishandling a high snap, kicked the ball out of the back of the end zone. Rene Paredes booted a field goal with five seconds left in the quarter to put the Stampeders up 17–8 at the half. Toronto opened the scoring in the second half four minutes into the third quarter with a two-yard touchdown run by running back James Wilder Jr.. A successful two-point conversion made the score 17–16. Jerome Messam would find the end zone again for the Stampeders roughly five minutes later, putting Calgary up 24–16 after a successful convert by Parades. The Stamps would protect this lead into the fourth quarter and appeared well on their way to victory when, with the ball on the Argo 8-yard-line, Toronto DB Cassius Vaughn pounced on a Kamar Jorden fumble and returned the ball 109 yards for a touchdown—another Grey Cup record. A two-point convert reception by Declan Cross tied the game at 24–24 with under five minutes to play. With 53 seconds left, Argo kicker Lirim Hajrullahu kicked the team's lone field goal, giving Toronto its first lead at 27–24. On their final possession Calgary drove the ball deep into Argonaut territory, but instead of attempting a game-tying field goal decided to go for the jugular. On 2nd-and-5 from the Argonaut 25, Mitchell's would-be touchdown pass fell into the hands of Argo defender Matt Black, sealing the victory for the Double Blue. Immediately following the game, Argonauts receiver DeVier Posey was named the game's Most Valuable Player, having put up 175 yards and one touchdown on seven receptions. Running back Jerome Messam of the Stampeders received the Dick Suderman Trophy as the game's Most Valuable Canadian after scoring two touchdowns.