Hunter S. Thompson Fear & Loathing

DEC
6
2026
Urban single-loop ultrarun in San Francisco from Twin Peaks offering 50K and 50 mile options with volunteer-supported aid and a mile 25 cutoff.
Sun 6 Dec 2026
50 miles 50 kilometers

Always double-check with the organizer's website! This page may contain affiliate links.

Hunter S. Thompson Fear & Loathing

Hunter S. Thompson Fear & Loathing is scheduled for December 6, 2026 in San Francisco, California. The event uses a single-loop urban course that starts and finishes at Twin Peaks and passes many city landmarks on foot. Two distances are offered:

  • 50 Miler
  • 50K

The event is presented in a "fat ass" format with the stated approach "No Fees, No Awards, No Aid, No Wimps." Organizers typically provide volunteer-supported aid stations, but aid is not guaranteed. Volunteers and parked cars commonly staff stations at approximate mile markers including Mile 0 Twin Peaks (car), Mile 6 Cesar Chavez / 3rd St, Mile 14 Geary & Webster, Mile 17 Coit Tower area, Mile 20 Marina Green, Mile 25 Seacliff area, Mile 32 Lake Merced, Mile 38 Sunset Blvd, Mile 44 Stanyan St, and Mile 50 Twin Peaks (car).

There is a cutoff at mile 25 that determines whether participants continue on the 50 mile route or switch to the 50K. Beginning in 2024, 50 mile entrants are required to run an additional 0.67 mile hourglass loop around Twin Peaks after returning in order to record the full 50 miles.

The event serves as a qualifier for the Ohlone Wilderness 50K Trail Run and supports the Shoes For Runners charity, with running gear donations to Mexican villages since 2012. Visit the organization's website for the most recent information.

50 mi
50 Miler
50 km
50k

Events nearby

Trail races at Redwood Regional Park offering 35K, half and 10K options on technical dirt trails with marked courses, chip timing, cupless aid stations, and limited field size.
A women’s trail half in the Marin Headlands covering 13.6 miles and 2,156 feet of climbing with aid stations, shuttle service, training support, childcare grants, and a $25,000 prize purse.
Virtual worldwide challenge and an in-person gathering at the San Francisco Ferry Building on October 24, 2026, fundraising for the Breast Cancer Research Foundation.
A team relay across San Francisco trails covering nearly 13 miles and over 2,000 feet of elevation, with five segments and teams of up to five runners for a $50 entry.
Add Event
Help us complete the calendar!
  • Distance is at least 5 km
  • Event has a website or Facebook page
Website
Optional: Please provide your e-mail address if we may contact you.
Report a change
We will only update the data if the information is also on the website.