This event has been Canceled

We are considering Friday evening start or Saturday morning to make the best of your day-use permit.
The first event for NorCal 100K Grand Slam, followed by Canyons, Miwok, and Quicksilver - 
100K - 15000 ft - 99% no repeated trails - totally wild and beauty

The best of the total 250 mile trails over the 87,000 acres park or 4x San Francisco in the second-largest California State Park.
ITRA 4pt (TBD), good toward UTMB and other international ultra trail races.
Plain100 Style - no markings, no aid station, follow your turns sheet, carry all your food and drink from 4 water fountains and several creeks.
Henry Coe Monument, Mount Sizer, Bear Mountain, Mississippi Lake, Pacheco Waterfalls, Coit Lake, Ketty Lake, Wilson Peak

1. FREE and true to Fat Ass.
2. $6 state park day-use fee unless you have the Poppy Pass.
3. A dime for a Kilos. $10 if you choose to have your run certified by us and sent for ITRA 4pt. We need to make sure that your run cover the route and no less. Send the payment, GPX file, and a few photos for us to verify within three days after your finish.

Upcoming Races

Apr 18 2020
100 KM
Single Loop Course
3 Elevation Rating
Hilly, ~2500-7500 feet in 50 miles
3 Surface Rating
Some rocks, root, and/or ruts


No Past Races
We try to keep the most accurate information about this race, but changes do happen. Always visit the official race website for the most up to date information.
Freaky Creeky 50 & 100
  • Sep 19, 2020
  • Vernon, BC
50 KM 100 KM