Relentless 24 – The Rockies’ 24-Hour Endurance Run 2025

This page is kept as a past race archive for the Jun 21, 2025 edition in Canmore, Alberta. Use the links below to find upcoming races in the same area or distance category. You can also browse the 2025 race calendar.

The RELENTLESS 24 is the Rockies' renowned 24-hour Endurance Run located at the Canmore Nordic Centre in the beautiful Bow Valley. This challenging race invites solo runners and teams to cover as much distance as possible on a mix of pristine single-track and double-track trails over the course of a full day.

Runners will experience spectacular views while navigating daytime and nighttime loops. The event welcomes solo competitors as well as team formats including pairs, 5-person teams, and corporate teams, and supports fundraising efforts for Ever Active Schools.

* Held at the Canmore Nordic Centre in Bow Valley * 24-hour timed event to run as far as possible * Trail running on pristine single-track and wide double-track trails * Start time is 11:00 AM on June 21, 2025

• Course includes daytime and nighttime loops
• Mix of rolling single-track and double-track trails
• Solo and various team categories: 2-person, 5-person, and corporate teams
• Supports fundraising for Ever Active Schools