National (curling)

The National, currently referred to as the Boost National for sponsorship reasons, is a Canadian curling tournament. It is one of the six events that are part of the Grand Slam of Curling tour, and one of its four "majors".
The event features 15 men's and 15 women's teams. The top 14 teams on the World Curling Tour's Order of Merit qualify, plus a "sponsors exemption". The 15 teams are divided into three groups of five teams, and each team plays the other four teams in their group in a round robin. The top eight teams overall advance to a single elimination playoff. This format has been in place since 2015. From 2007 to 2014, the event had three pools of six teams each.