Henry Burris threw his third touchdown of the game in overtime as Ottawa shocked the Calgary Stampeders 39-33 to win the 104th Grey Cup.
Ernest Jackson bobbled the pass over the goal line before gaining control as Ottawa won its first Grey Cup title in franchise history.
Calgary was favoured by double digits heading into the game after finishing with a 15-2-1 regular-season record, while the Redblacks at 8-9-1 were the first team to finish first in a division with a losing record.
But Grey Cup MVP Burris scored on a one-yard plunge on the game’s opening drive despite having his left knee lock up during the Redblacks’ pre-game warmup, and Ottawa controlled most of the entire game.
The Stampeders turned the game into a thriller, however, charging back from 20 points down and forcing overtime on a Rene Paredes field goal with time expiring in regulation.
Calgary quarterback Bo Levi Mitchell, the recently named season’s most outstanding player, threw three interceptions.