Marin Ultra Challenge

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Marin Ultra Challenge
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Take on some of Marin’s best trails, with hills and sweeping descents that will push you to limits you didn't think possible. This will be a rollercoaster of physical and mental endurance, creating memories you'll never forget Collect a finisher's medal and an event pint glass to serve as a memento.
50 Mile and 50k
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Sat, Mar 12, 2022
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Mill Valley, United States
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Where and when
Rodeo Beach, 11050 Mitchell Rd, Mill Valley, CA 94941, USA
Start times
Saturday, Mar 12, 2022
50 Mile:
6:30 AM |
7:00 AM
Event summary
Here are the distances available for Marin Ultra Challenge
50 Mile
Route information
The journey begins at the black sands of Rodeo Beach, and traverses the Marin Headlands, Stinson-facing Mt. Tamalpais and Muir Woods, exhibiting a range of terrain, from exposed fire-roads with incredible coastal and inland views to tight, technical single-track with redwood canopies.
The vast majority of the course will be run on moderately technical dirt trails and non-technical fire roads. The hills can be long, and challenging! Hiking/trekking poles are permitted at this venue.
All courses will be marked with colored surveyor ribbon, placed approximately every 200 meters along the course. Turns are marked heavily on the inside of the turn, with 3 ribbons placed just before and just after the intersection.
The most important course marking is the blue ribbon. Blue ribbons indicate “wrong way” trails. You will see blue ribbons, but do not run past a blue ribbon or you will be heading off course.
Organizer route images
What's included
  • Bespoke Finisher's Medal
  • District Perfect-Tri tri-blend fabric shirt
  • Fully stocked aid stations
  • Chip-timed results
  • Pint glass with race logo
  • Prizes for age & gender categories
How to get there
Rodeo Beach, 11050 Mitchell Rd, Mill Valley, CA 94941, USA
Get full directionsExternalLink
Free parking is available in the surrounding areas to the start/finish at Rodeo Beach. Carpooling is strongly encouraged by the event organiser so there are enough spaces for everyone.
Event day logistics
06:31 Sunrise at Sausalito, CA
05:30 - 07:00 Check-in & Bib Pick-up
06:30 50 Mile race starts
07:00 50k race starts
18:12 Sunset at Sausalito, CA
21:00 Event ends
Cut-off Time
There is a 14.5 hour time limit for the 50 Mile race. All runners must be off the course by 21:00pm.
Dog Policy
Unfortunately, dogs are not allowed on the Marin Ultra Challenge course. You may have dogs, on a leash, at Rodeo Beach.
Cupless Event
This a cupless event, meaning aid stations will not have paper cups available for runner use. Each runner will be responsible for carrying their own water bottle or reusable cup. Reusable cups are made of silicone, are collapsible, and easy to carry with you while you run.
Aid Stations
There will be several aid stations stocked with a variety of variety of glycogen-replenishing, electrolyte-replacing products.
Can I run the Marin Ultra Challenge with my dog?
Unfortunately, dogs are not allowed on the Marin Ultra Challenge course. You may have dogs, on a leash, at Rodeo Beach.
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