The YYC Sub Ultra Trail Run takes place on August 30, 2026 in Calgary, Alberta. Organized by RnR Premiere Events, the one-day event celebrates sub-ultra distances — races shorter than a marathon that have surged in popularity — and centers on the city’s trail-running community around Nose Hill Park.

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Runners choose from a 34 km, 17 km, 6.8 km and a 2 km kids run. The 17 km distance includes a dedicated Wild Rose women-only field, and the main distances begin with a mass start at 7:00 a.m. MDT on race morning. The kids 2 km is listed as an untimed event, making it a family-friendly addition to race day.

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What distinguishes YYC Sub Ultra is the combination of compact sub-marathon challenges and genuine prairie-trail terrain inside Calgary. Courses weave Nose Hill Park’s rolling singletrack and service paths, offering prairie outlooks without a long drive from the city. Organizers position the race as an accessible step into trail ultras for first-timers while still providing a stout 34 km option for runners seeking a concentrated endurance test; the women-only Wild Rose 17 km and untimed kids run add community-focused choices.

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Registration uses tiered pricing with the final registration window listed through August 29. Runners should check entry deadlines and sign up early to secure the preferred distance.

• Start/finish at Nose Hill Park (Shaganappi Trail NW access)
• Terrain consists of native-grass prairie singletrack and multi-use service trails
• Event distances run on the course: 34 km, 17 km (including a women-only Wild Rose field), 6.8 km, plus a 2 km untimed kids run
• Mass start for the main distances at 7:00 a.m. MDT on race day

• Wild Rose women's-only 17K: a dedicated women-only entry field for the 17 km distance
• Family-friendly kids run: an untimed 2 km youth race included on race day
• Urban prairie trail setting: routes use Nose Hill Park’s rolling singletrack and multi-use paths
• Compact endurance option: a 34 km sub-ultra for runners wanting a shorter-than-marathon challenge
• Local community focus: organized by RnR Premiere Events with strong ties to Calgary’s trail-running scene