T1D 48-Mile Challenge

JUN
5-7
2026
Take on the 4x4x48 challenge in Humboldt by running 4 miles every 4 hours for two days. Support Type 1 Diabetes research through this ultramarathon, a themed glow run, or a community walk.
5-7 Jun 2026
Single Leg 4x4x48 Ultramarathon

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T1D 48-Mile Challenge

The T1D 4x4x48 is an endurance event based on the format pioneered by David Goggins. Athletes run 4 miles every 4 hours over a 48-hour period. This schedule results in twelve individual 4-mile runs over two days, totaling 48 miles. The event takes place in Humboldt, Saskatchewan, and utilizes the local wilderness trails.

The weekend features several ways to participate:

  • T1D 4x4x48 Ultramarathon: The full 48-mile challenge.
  • Single Leg Participation: Options to run, walk, or bike a single segment of the course.
  • Community Walk: A walk open to the general public held on Sunday.
  • Super Hero Run: A themed run held on Saturday evening.
  • Midnight Run: A late-night run where participants use glow-in-the-dark accessories.

The event schedule includes social activities such as the Dine & Dash Banquet on Friday night, featuring live entertainment and auctions. Additionally, a community breakfast is provided on Saturday and a barbecue lunch is held on Sunday. The primary purpose of the challenge is to raise funds and awareness for Type 1 Diabetes (T1D) research. Proceeds support DRIFCan, an Edmonton-based organization that funds cure-based research. The structure of the run is designed to acknowledge the constant mental and physical effort required by those living with this auto-immune disease. Visit the organization's website for the most recent information.

48 mi
4x4x48 Ultramarathon
4 mi
Single Leg
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