Lost Soul Ultra Marathon 2025

This page is kept as a past race archive for the Sep 5, 2025 edition in Lethbridge, Alberta. See the 2026 edition when you want the live listing. You can also browse the 2025 race calendar.

The Lost Soul Ultra Marathon is an annual trail race in Lethbridge, Alberta, featuring distances of 50K, 100K, and 100 miles. The scenic course challenges runners with river valley coulees, significant elevation changes, and varied terrain including single-track trails, gravel roads, and shale paths.

The 100K serves as a Western States Endurance Run qualifier. Participants benefit from excellent volunteer support and well-placed aid stations providing food and beverages throughout the course.

• Distances: 50K, 100K, and 100 miles
• Start dates: September 5 for 100K and 100-mile races; September 6 for 50K race
• Start times: 7:00 AM for 100-mile and 50K races; 9:00 AM for 100K race
• No entry fee information specified; check the official website
• Age restriction: Participants must be 18 years or older
• No green bibs or strollers allowed

• 54 km loop with approximately 1,200 meters (3,600 feet) elevation gain and loss
• About 16 significant hills per loop (150 to 250 feet each)
• Terrain includes single-track trails, gravel roads, and shale paths
• Strategically placed aid stations offering a variety of food and beverages
• Exceptional volunteer support and well-marked trails