T1D 48-Mile Challenge
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T1D 4x4x48 Ultramarathon : Humboldt, SK, June 5 to 7, 2026
The T1D 4x4x48 is a run format in which participants run 4 miles every 4 hours across a 48 hour period, totaling twelve 4 mile runs and 48 miles. The event takes place in Humboldt, SK, on a wilderness trail.
This is the sixth annual edition supporting cure-based research for Type 1 Diabetes and raising awareness of the condition. Over the past five years the event has raised more than $372,000 to support research through DRIFCan, an Edmonton based organization that funds cure-focused research.
The weekend program includes a Dine and Dash banquet with entertainment and live and silent auctions, a community breakfast supported by a local Special Olympics team, an evening glow run, and a community walk with a complimentary barbecue lunch. The ultramarathon route follows natural trail sections and the event base is located at the Uniplex parking lot in Humboldt. Visit the organization's website for the most recent information.