Have a look at the newest race coming this summer. The Okanagan 24 is being organized in part by pro rider and Salty Dog regular (regular winner as well) Corey Wallace.
The race is located at Silver Star mountain June 29-30, at an elevation of 1,609 m (5,280 ft) that makes it Canada’s highest 24 hour mountain bike race.
24 hour and 4 hour mountain bike races which are for all levels of riding ability. The 24 hour race categories are competitive teams of 5, solo racers and corporate teams of up to 10. The 4 hour race will allow for solo racers only to compete.
Go to https://okanagan24.com to register and for all the relevant details. Looks like a good one!