Sinister 7 Ultra

JUL
11
2026
Sinister 7 Ultra is a scenic seven stage trail challenge along the Seven Sisters mountains near Blairmore, Alberta, with distances from half marathon to 100 mile and team relays. Solo runners or teams have 30 hours to conquer the course.
Sat 11 Jul 2026
100 miles 50 miles 50 kilometers Half Marathon

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Event overview

Sinister 7 Ultra is a trail race held in Blairmore, Crowsnest Pass, Alberta, Canada on July 11, 2026. The course is divided into seven stages, each highlighting a geographic or historic feature of the area. The event name refers to the Seven Sisters Mountain that sits along much of the course. Solo runners or teams of up to seven may enter. Participants are given 30 hours to complete the full event.

Race format and logistics

Distances and formats include:

  • 100-mile solo or relay.
  • 50-mile (specified as half of leg 4, plus legs 5 through 7).
  • 50k (specified as half of leg 1, half of leg 2, and leg 3).
  • Half Marathon (half of leg 1 and half of leg 2).
  • Relay teams for the 100-mile distance.

Team registration notes: a team must start with at least two teammates to register. Teammates can be added after initial registration and an access code can be enabled to limit team joining. The event includes a Sinister Kids Race. Sponsors listed for the event include Merrell, Sun River Honey, Fenix, Fast Trax, and Tailwind. The event schedule includes pre-race check-in and meetings, post-race awards and meals, and course closing times across the race weekend. Visit the organization's website for the most recent information.

100 mi
Sinister 7 Relay – 100-Mile
100 mi
100-Miler
50 mi
50-Miler
50 km
50k
Half Marathon
Half Marathon
Sinister Kids Race