NEW 12 HOUR RELAY RACE OPTION!
12 Hour Relay option opened September 1st for registration.
Two person relay teams, change up your order as you wish (even v. odd laps, alternate every three laps, switch every hour). Both runners get a t-shirt & wine glass. One bib, you will need a belt or something to transfer the bib as a baton while you run.
Join us and be a Napa Lapper!
Course Information
Detailed Course Map | Elevation Profiles | Lap Chart |
Race Information
The Napa Lapa Trail Adventure is Inside Trail’s first time-based run. This means that instead of running a pre-determined distance as fast as possible, you’ll be running for a pre-determined amount of time as far as possible. And what other place could be better than the beautiful, rolling hills of Napa’s Skyline Wilderness Park?
The Napa Lapa will go from 7:00 AM – 7:00 PM!
What’s fun about this event is that you can run a lap, take a break and head out again when you are ready, as long as your race is still open. Whether you get in 1 lap or you get in 20 laps, you have finished the race! You will now be a Napa Lapper!
Each loop will be 4.1+ miles long. Test yourself and see how fast and how many you can complete. Each loop has approximately 815' of elevation.
This is Inside Trail Racing style, lots of elevation gain!
Plenty of Awards to go around:
The Lapa Lapper - Overall Winners
The Grappa Lapper - Fastest Lap per event
The Dapper Lapper - Best Dressed
More to be announced!
Start Times:
● 12 Hour – 7:00 AM
● 6 Hour – 7:15 AM
● 3 Hour – 7:30 AM
Park Information
Skyline Wilderness Park is located in Napa, California. In 1979, the land beside the State Hospital was declared to be surplus and was to be sold to a private party. A group of concerned citizens got together and enlisted the help of various members of the community and government to allow the group to use the land as a park for the Napa Valley. The idea of a park was formed, a constitution was created, incorporation papers drafted, environmental impact studies made, etc. Since there has never been a private sector leasing state land for a park system, the State leased the land to the County of Napa which then subleased it to the Skyline Park Citizens Association. More on the history of Skyline Wilderness Park here.
Skyline park has 25 miles of multi-use fire road and singletrack trails of various skill levels. As a memorial to Martha Walker, the Martha Walker Native Habitat Garden in Skyline Park was created, inviting visitors to enjoy a unique presentation of flora from all over the State.
Park information
Skyline Wilderness Park
2201 Imola Ave, Napa, CA 94559
Click for Directions
Camping Information
Camping details:Booking camping is directly through Skyline Wilderness Park | Camping Details
Book Your Camping Reservation
Presenting Sponsor
Omen Wine
Omen Wines is an Atlas Wine Co brand. It is a new generation winery based in Napa, CA with family roots specializing in a vineyard-to-bottle approach with minimal winemaking intervention. Atlas Wine Co. has 2 brands: Omen and Oro Bello Wines. Omen wines are dedicated to the movement of Craft. Finding some of the best-hidden gem wine appellations throughout the West Coast. Omen wines are meant to be bold and with a lot of personalities. Oro Bello wines represent La Dolce Vita (the sweet life). Wines are made with friends and a good time in mind. Always approachable and most certainly fun!
Awards
The top three overall winners "The Napa Lappers" (male and female) of each race distance will receive a custom trophy with the race logo. In addition, the top finisher for each distance (male and female) will receive a bottle of Omen Wine from our presenting sponsor (21+).
All finishers will receive a custom medal with the race logo.
The Dapper Lapper will go to the best dressed!
All 12 Hour will receive Inaugural Memorial Wine Glass.
All 6 Hour will receive TBD.
The Dead Last Finisher (DLF) in each even will receive a custom award.
Age-group medals (3 deep) will be awarded in the following categories, for both males, females and non-binary:
● 13 and under
● 14 – 19
● 20 – 29
● 30 – 39
● 40 – 49
● 50 – 59
● 60 – 69
● 70 and over
Shirts
Most of our race shirts are District Perfect-Tri tri-blend fabric shirt. This tee is made with top-of-the-line sportswear technology to heighten performance during your toughest workouts. With sun defense, moisture-wicking technology, quick stain release, and comfortable fit, this tri-blend performance crew serves the needs of every athlete. It’s the perfect year-round choice for outdoor sports and exercise. Get the most out of your workout with this tough, hardworking tee.
Features:
● 4.5-ounce, 50/25/25 poly/combed ring spun cotton/rayon, 32 singles
● 1X1 rib knit neck
● Shoulder to shoulder taping
● UPF 30
To be guaranteed a shirt and shirt size, you must register by September 27, 2025.
Volunteers
Without the support of enthusiastic and caring volunteers producing our races would not be possible. Volunteers of all ages and abilities help with setup, check-in, aid stations, course marshaling, timing, and post-race food.
Volunteering is a fun, novel way to experience races, play in the outdoors, and spend time with friendly people. All volunteers receive a free race T-shirt, free food, and the ability to earn credit toward a future Inside Trail Racing event, commensurate to the amount of time worked. Five hours of assisting an event results in a free race credit or Inside Trail merchandise.
To volunteer for this year’s event, please submit our online volunteer form.
Aid Station Supplies
Inside Trail Racing aid stations are replete with an optimal variety of glycogen-replenishing, electrolyte-replacing products. The following is a list of some of the foods and beverages each aid station may provide: Gu Energy gels, chews, and Stroopwafels, trail mix, pretzels, potato chips, Oreo cookies, boiled potatoes with salt, Coke, Ginger Ale, water, Skratch Hydration Mix, PB&J sandwiches, M&M’s, salt tablets, bananas, watermelon, and tangerines. Aid stations are also equipped with general first aid items, including Salt-Stick tablets, but no anti-inflammatory medicine.
Skratch Labs is 80 calories per serving with minimal sugar (4g per 100 ml) and a ratio of sugar (glucose + fructose) that is optimized for faster absorption, an electrolyte profile that actually matches what is lost in sweat (800 mg sodium, 80 mg potassium, 100 mg calcium, and 80 mg of magnesium per liter).
As distances between aid station vary, we strongly encourage all runners to carry at least one 20oz bottle during their run.
FAQ's
You've got questions, we've got Answers!
Alcohol - Alcohol is permitted at the park, you may bring your own. You are NOT PERMITTED to drink while your event is going on. If you drink your run will be over. You will still have a finish and all laps you completed to that point will be your results. Due to liability, safety and caution, anyone who drinks will be finished with their race.
The Fine Print
ITR Refund Policy:
Entry fees to our trail runs are non-refundable in all cases, and we do not offer credits, transfers, or deferrals to future races except as described below. Only registered runners can participate in our races, and you cannot exchange your entry with anyone else in any case.
We are happy to issue a credit worth 50% of your original race fee toward a future Inside Trail Racing event if we receive your cancellation at least 3 weeks prior to the race. Credits will expire 1 year after the date issued. There will be no credit provided if a cancellation is made within 3 weeks of the race.
While we understand that last-minute injuries, conflicts, emergencies, deaths, and other unfortunate events affecting registered runners can happen and may impact your plans for participation, we must adhere to our cancellation policy stated above and cannot offer any credits, refunds, transfers, or deferrals in any of these cases.
If the situation does arise where ITR must outright cancel an event for any reason, there will be no refunds. This could include earthquakes, floods, extreme weather, unsafe air quality, pandemics, or any other “Act of God”. ITR at its sole discretion may choose to offer future race credit or deferrals in these force majeure situations, depending on the circumstances and how close to the race date the event was cancelled. We will communicate with all registered runners as soon as possible regarding the cancellation and any pertinent information.
We do not cancel races due to rain or heat. Due to trail work, closures, or for myriad other reasons, permitting agencies may require changes to the publicized courses at any time prior to an event. This is out of our control, and we therefore will not offer refunds, credits, deferrals, or transfers (except as described below) in such a situation. If a race location is changed, but still hosted on the same day, we will automatically transfer the registration over to the new venue, or entrants may choose to run the race remotely and we will mail awards. If a race is postponed all entrants will be transferred to the new date.
Event's current local time: 2:00 AM PT
