T1D 4x4x48
Last run June 2026Date TBA
Humboldt, Saskatchewan
No date announced yet — what we know
- Last held Friday, June 5, 2026 — the first Friday in June.
- Distances last time 48mi, 4mi
- Start Humboldt Uniplex, 17 Street, Humboldt, SK, Canada
RaceFinder re-reads the organizer's listing every morning. Nothing on this page is a confirmed 2027 date — the box under this one sends a single email the day one appears.
About this race
Push yourself to your limits with the unique challenge of the 4x4x48. This race requires you to run 4 miles every 4 hours for 48 hours, equalling 48 miles in total. This ultra will test your mental fortitude as no other race can. Don't worry, you don't have to run all 12 legs! You can run only one leg, you can run day races only, you can run every second race - the options are endless!
— from the organizer's listing, read it in full
This race runs annually (last edition: June 5, 2026). The next date hasn't been announced — watch the organizer's page.
Listed via Race Roster. RaceFinder links you to the official page — always confirm date and details with the organizer. Your race? Update or claim this listing free →
Distances last time
- T1D 4x4x48
Join us in-person in Humboldt, Saskatchewan, for our annual 4x4x48: 4 miles every 4 hours for 48 hours. Some of us will be running the whole thing, some of us won't, but we'll all be there to support each other in our personal goals!
- Dine &Dash
Join us for a great meal on Friday evening at 6:00pm. From there, we will run the first leg of the race at 8:00pm, followed by an auction and live duelling pianos!
- Drop-in Run
If you would like to join us for a run or two, sign up and sign the waiver.
Distances and details from the last edition's listing. Entry fees aren't shown because the next edition hasn't been priced yet.