Saturday, May 18, 2024

Napa Wilderness Trail Runs

2201 Imola Ave.

Napa, CA 40 Mile , 50K, 30k , 13.1/Early, 10k

This Event Took Place Sat. May 18, 2024

Welcome to Napa Wilderness Trail Runs

Welcome to Bay Trailrunners Napa Wilderness Trail Runs at Skyline Wilderness Park. Our 4th year at this location for Bay Trailrunners offers something for every level of trail running from Ultra Marathon for the more advanced runner or a 10k for someone just getting into the sport or those just coming back to it. Our half marathon is perfect training for those looking to up their game a little

Course Maps and Elevation

Strava Maps and Elevation Charts
Napa Maps 2025

40 mile running milage 39.6

50k running milage 31.1

30K running milage 18.3

1/2 Marathon running milage 13.7

10k running milage 6.1

Directions and Parking

Skyline Wilderness Park
2201 Imola Ave. Napa, CA 94559 Click here for directions
The $6 parking fee in included in your race registration.
We will be entering the park through the south gate overflow parking. Look for a Bay Trailrunner volunteer to help you to your parking spot. Please do not enter through the main gate. THE SOUTH LOT IS 1/8Th mile bfore the main gate on the right hand side of the road next to the 40 MPH road sign

***** please be prepared to show your registration via cell phone or printed page when you arrive to the gate to ensure that you have registered for the event for people that have friends or family coming to cheer. They will need to go to the main gate and pay the $6 parking fee. DOGS are permitted in the start finish and camping areas, but not on the trails

Races / Registration

Napa Wilderness Trail Runs at Skyline Park will offer a wide range of trail runs from Ultra distance to a 10k for new trail runners or folks just getting back to the trails.
The 50k and 30k course were designed with the help of ultra runner Angela Abbey . Both course take you up the Rim Rock Trail with steep up hills and beautiful views of the whole Napa Valley. On your arrival to the summit of Rim Rock you can spot Mount Diablo to the East , Mount Tamalpais to the West and Mount Saint Helena to the North
The Half Marathon route is a moderate level run and perfect for training for a longer run or just out to have a great time on the trails.
The 10k is perfect challenge for a new trail runner or someone just getting back into the sport.

Camping and Park Extras

Skyline Wilderness Park as so much more to offer. If you want to CAMP before or after the race event the park offers many different options. RV to tent camping with restrooms and showers onsite. You can also Mountain Bike, Ride Horses or enjoy a game of disk golf (frisbee) and all the other amenities here (all extras are sold through Skyline Wilderness Park and not a part of Bay Trailrunners.) Skyline Wilderness Park Web Site

Online Store

Additional Swag and Bay Trailrunners Hats can be purchased from our online store.
Bay Trailrunners Store

Race Day Runner Check In and Race Briefing

Runner check in will open 1 hour before the start of your race. Please don't get in line early as to free up space for running starting soon. A race briefing for each race will be 15 minutes prior to the start of each distance. It is highly recommended you attend.

Aid Stations and Course Markings

Aid will be provided at the start and finish and at aid stations throughout the course averaging every 5 to 9 miles. All runners can expect to see copious amounts pre packed food and snacks on the course, Our aid stations are touchless meaning we will no touch your cups/water bottles or food. The volunteer staff will pour water or hydration fluid in your cups or place your desired snack on the table for you to pick up. There will be no open food dishes. NAAK will be the nutrition partner on the course. We will have Plant Based options for all runners. The 30k and 50K do have a 9 mile section with a water only stop in the middle, be prepared and carry nutrition and water with you for this longer section

Vendor Parteners / Sponsors

Hydration and Gels will be supplied on course
Yousef's will be serving wraps and snacks post race
Victory Sportdesign will be onsite with drop bags and merchandise
Skyline Park Camp and Park Info
Victory Sportdesign Order Here

Post- Race Food/Drink

All runners will be offered a wrap/burrito from "Yousefs , Again plant based will be offered. Drinks and beer will be in coolers for all to enjoy.


VOLUNTEERS NEEDED Interested in earning a $50 credit for a future race? Please help us out volunteer. 6 hour minimum for race credit, volunteer shirt and Race Meal Click here to volunteer or email us at

Cup Free Racing Information

All Bay Trailrunners races are cupless. This means you need to supply your own cup/water bottle at all aidstations and the start finish area. Aid Stations will not have cup please be prepared. Some of our events will have reusable hydro pouches for purchase. PLEASE BRING A Cup, water bottle or bladder


Race Photos are from Jay Boncodin, Photo are no charge but high resolution photos can be purchased from the photographer

Take a look at the photos from 2024

Trail Rules and Etiquette

1. Trail running is a very special sport that shares trails with the public including hikers, bikers, horses, and even dogs. Please be kind to all. Because we have a permit and you paid for the event, does not give you more right of way than others. Please be courteous of others and share the trails as you would a store aisle at your neighborhood store.
2. Absolutely no littering. "Leave No Trace."
3. When passing a runner announce yourself politely by saying ""May I please pass? or "On your left please."
4. All runners must wear bib on front of person. (Not on your back, pack, hat, butt, or calves).
5. Downhill Runners have the right of way. Uphill runners and hikers, please keep your head up
6. If you quit before or during the event, then you must turn in your bib and/or notify a race official at the start line or aid station when applicable.
7. Volunteers give up their time to make your day special, so please thank them many times over.


Final results will be posted here on Ultra Sign Up within 72 hours after the event

we are old school and this is a manual timed event, so please be patient and we will have the results of as soon as possible

Refunds, Transfers, Race Credit Policies

Below is our standard policy for Bay Trailrunners / Trail Squirrel Adventures LLC.
Refunds & Transfers
Entry fees associated with Bay Trailrunners (Trail Squirrel Adventures) events are non-refundable and non-transferable, nor do we offer deferrals to future races. Contracts, permit fees, awards, shirts, and all things associated with your event are planned and paid for long before your race day. We also do not transfer entries from runner to runner for various reasons. If a runner is found to be running under someone else's registered name, the bib will be pulled and the runner will not get credit for the race, or race swag.
Race Cancellation Credits
For 75% race credit towards another Bay Trailrunners (Trail Squirrel Adventures) event, you must notify us in writing 30 days before your event at For 50% race credit, you must notify Bay Trailrunners (Trail Squirrel Adventures) 14 days before your event. For 25% race credit, you must notify Bay Trailrunners (Trail Squirrel Adventures) prior to 72 hours remaining before your event. Your race credits will be valid for one year from the time you earned them. Fees from registration sites are not refunded or credited. Not showing up to the event will result in no credits.
Once again, registered runners can participate, and you may not exchange your entry with another individual.
Races will not be canceled due to rain or heat. Course trail work, closures, reroutes or construction may lead permitting agencies to require changes to the printed courses at any time prior to an event. This is out of the control of any race director, and we therefore will not offer refunds or credits in such a situation. If a race location is changed due to park closures, we will automatically transfer the registration over to the new venue; or entrants may choose to cancel their entry (non-refundable and non-transferable). Races cancelled due to inclement weather, fire or unsafe AQI will be rescheduled, or credited 50% towards a future race. Cancellation will only happen in the best interest and safety of the runners, staff and volunteers.
Event Swag
While every effort is made to insure that advertised swag is provided, we do reserve the right to change swag due to shipping and vendor fulfillment and supply chain inconsistencies. We do not mail swag not picked up or left behind.

Thank You

RD:Todd Glieden
Trail Squirrel Adventures LLC
Castro Valley , CA

Our Founder Robert Rhodes

If trail running is the ruling passion in Rob's life, it is best expressed in the company he created, BayTrailrunners. He built this group from scratch, starting with just a few like-minded runners to staging races attended by hundreds of runners. Along the way, he controlled all aspects of the races he created. He built and managed the BayTrailrunners website and created newsletters and mailing lists to promote the runs along with print, social media content, and videos.

Rob and his media side hustle, the Dirtbagger Film Syndicate, also became the first international representative of the Trails in Motion Film Tour when it was awarded the film distributorship rights for Northern California. Each year now, Rob screens a new selection of films in various venues in California and elsewhere. His screenings have grown from just one in 2014 to ten in 2019 and have included such stages as the Western States Memorial Day Weekend Training, Miwok, North Face Endurance Challenge, Hardrock, Broken Arrow Skyrace, Lake Sonoma 50, and American Trails Running Association Trail Conference.

Event's current local time: 10:12 PM PT


Linked Events

Ask a Question

Top Performances