The 2021 BOOST National was held November 2 to 7 at the Chestermere Recreation Centre in Chestermere, Alberta.

[1] It was the second Grand Slam and second major of the 2021–22 curling season.

The top 16 ranked men's and women's teams on the World Curling Federation's world team rankings qualified for the event.

[2] In the event that a team declines their invitation, the next-ranked team on the world team ranking is invited until the field is complete.

Top world team ranking men's teams:[3] Top world team ranking women's teams:[4] The teams are listed as follows:[2] Source:[6][7] All draw times are listed in Mountain Time (UTC−06:00).