Grey Cup, 2013

Should have asked "who knows how many times the West has won playing against the East", as there were many initial games where both teams in the Grey Cup came from the East?

The Winnipeg Blue Bombers have made the most appearances (29), while the Toronto Argonauts have won the most championships (16). The game has never been held outside of Canada, but the American-based Baltimore Stallions appeared in it twice, winning once. Although the first Grey Cup game was in 1909, there were none from 1916 to 1919, so the 2012 Grey Cup was the 100th.[5] The 101st Grey Cup was played on November 24, 2013, at the Mosaic Stadium in Regina. The Saskatchewan Roughriders defeated the Hamilton Tiger Cats 45-23 to win their fourth championship