The Canadian Olympic Curling Trials, also known as the Tim Hortons Roar of the Rings, take place preceding the Winter Olympic Games and are separate from the other national championship, The Brier, which has been held since 1927.
The Canadian Olympic Curling Trials, known as the Tim Hortons Roar of the Rings since 2005 for sponsorship reasons, occur every four years, in the year preceding the Winter Olympic Games. One main reason for an Olympic qualifying event apart from the national championships (The Brier and the Scotties) is that provincial residency rules do not apply to the Olympic team. 1927 
