Weather conditions and change in punting rule
Because of strong winds of up 30 to 40 miles per hour, CFL officials, in agreement with both head coaches, Bud Grant for Winnipeg and Ralph Sazio for Hamilton, changed a punting rule prior to the game, perhaps unprecedented in CFL if not in football history. Instead of punts being returned with no Fair catch rule, punts into the wind would be ruled dead as soon as the returner touched the ball, a sort of forced Fair catch rule, the rule being voluntary in the National Football League. Without the rule change, it was thought that the team going against the wind would lose the viable option of punting and be forced instead to try to convert on third downs all the time.
A strong wind prevailed throughout the game, and all scoring occurred while the team who received the points was going with the wind. To retain possession of the ball, the Blue Bombers conceded one safety touch in the first quarter and two in the third quarter while struggling against the wind. In the fourth quarter with the wind at their backs, the Bombers began a last-minute drive, snuffed out when fullback Art Perkins was stopped cold by the Hamilton defence on a third-and-one gamble. The Bombers lost by 6 points, the margin of three yielded safeties. They would return to the Grey Cup game only 19 years later, the 72nd Grey Cup in 1984.
Rule change implemented because of this game
As a result of the strategy employed by the Blue Bombers, in which they voluntarily conceded safeties to keep the ball, the rules were changed for the following 1966 CFL season. Teams scored against on a safety touch would no longer be entitled to keep the ball. Instead, they would be forced to kick the ball away to the other team.