The Squamish 50 races are a series of challenging trail running events set in the stunning terrain of Squamish, British Columbia. Featuring over 85% singletrack and significant elevation gain, runners experience breathtaking views of glaciated peaks and the Pacific Ocean. The event offers multiple race distances including a 50-mile ultra, a 50 km ultra, a 23 km trail run, a combined 50/50 ultra, and a kids race.

Participants must be 19 or older to enter the main races, with younger runners aged 12-18 allowed with a parental waiver. The races emphasize safety and fair play, with mandatory headlamps for the 50-mile start and restrictions on pacers, poles, and crew access.

- 50-mile race includes over 3,350 meters (11,000 feet) of climbing
- 50 km race features 2,500 meters (8,500 feet) of ascent
- 23 km race has 1,000 meters (3,300 feet) of ascent
- Mandatory headlamps at the 50-mile race start
- Pacers and poles are not allowed in any race
- Aid stations offer standard ultra-running foods and drinks
- Limited crew access; unauthorized access may lead to disqualification