Lost Soul Ultra Marathon

Lethbridge, Alberta, Canada

Sep 11-12, 2026 - Friday to Saturday

50k, 100km, 100mi, Ultra

Race Information

The Lost Soul Ultra features 50K, 100K, and 100 Mile distances through the beautiful Coulees of Lethbridge. The "Toughest Race on the Prairies" takes place the weekend following Labour Day in Lethbridge, Alberta. The trail course runs through the river valley coulees on public and private land, and runners race against each other, the elements, and the unrelenting hills.

Lost Soul Ultra has maintained its status as a 100 km qualifier for the Western States 100-Mile Endurance Run.

πŸ‘ Run Pick of the Month: 5 Peaks Central Alberta Race 1 - Sikome Lake

πŸ“ Calgary - May 9, 2026

πŸ’Έ SAVE 10% On Entry & Merch. Use Code: RUNGUIDES10

πŸ˜„ Why We Like This Run
βœ… Scenic singletrack through Fish Creek Park
βœ… Kids, Sport, or Enduro distance options
βœ… Lakeside finish with food and awards

Set in scenic Sikome Lake within Calgary’s Fish Creek Provincial Park, this 5β€―Peaks Trail Run delivers an exhilarating mix of gentle trails, fun distances, and a lively community atmosphere that runners of all ages will love.

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Race Facts

Race Size: 100 - 500

Elevation: Lots of Hills

Course Type: Trail

Boston Qualifier: No

Kids Run: No

Where to Stay

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