October 24, starting at 7 a.m.
The organizer's registration listing gives Saturday, October 24, 2026, at 7 a.m. for the first officially sanctioned edition of Whaleathon. That is local Salt Lake City time.
Checked October 8: the organizer's Register Now link leads to UltraSignup, which lists registration closing Wednesday, October 21, at 11:59 p.m. Mountain Time. Use the direct registration link below for current availability, participation details, and any changes before making plans.
The arithmetic of a very small course
Whaleathon turns an approximately 0.04-mile loop into a marathon by repeating it roughly 630 times. The course circles the Out of the Blue roundabout at 900 South and 1100 East until the same Whale has appeared from every possible angle and several impossible ones.
Those figures come from the organizers, not a certified course record published by Whale Fortunes. Event-day instructions and any route controls should take precedence over historic lap counts.
How the orbit began
The idea began in 2022 when Evan Service wondered aloud what it would be like to run a full marathon around the Whale. Caleb Leftwich, Jackson Bradshaw, and Wyn Barnett helped turn the joke into a route, and the first Whaleathon was completed on October 21, 2023.
KUER documented that first marathon and the community that gathered around hundreds of tiny laps. Since then, the organizer has maintained a finisher list for people who complete the challenge outside a formal event.
Watch the organizer, not the prophecy
The organizer's event listing says the roundabout will be closed during the event. Follow its current event-day access and route instructions; ordinary days still have live traffic. Whale Fortunes is an independent guide, and registration, participation rules, and schedule changes belong to the organizer.
The organizer also points non-runners toward Friends of Great Salt Lake. That connection is part of the event's own invitation; Whale Fortunes has no affiliation with either organization and receives no commission.
Sources
- Whaleathon — official 2026 event page
- Whaleathon — official registration on UltraSignup
- KUER — the first documented Whaleathon
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