UltraTrax Wachusett
About this race
A summit-driven grind up Wachusett Mountain where steady climbs, rocky pitches, and winding forest trails test your legs and reward your effort. The route traverses Wachusett’s ski slopes and wooded single-track, climbing through pine and hardwood forest before breaking onto exposed upper mountain terrain with sweeping views across Central Massachusetts and, on clear days, all the way to Boston’s skyline. Push your pace. Carry your weight. Move with the pack.
Choose your distance: 7, 14, 21, or 28 miles, and complete in 10 hours to earn the coveted UltraTrax Grey Wolf Medal. Toss on a 10, 20, or 35-lb weighted vest or ruck and unlock bonus finisher swag + serious bragging rights. The course will be extremely well marked.
UltraTrax Wachusett kicks off at 7am on August 30, 2026. The starting line will be open from 7am to 10am. It is not a race, but it is a timed event and walkers will have 10 hours to complete the course. Bibs can be mailed or picked up the morning of the event. **IF YOU REGISTER AFTER 8/15/26, BIBS MUST BE PICKED UP IN PERSON. A friend or relative can pick up a bib if you can't attend. Complimentary parking is available onsite. Finishers will receive a custom t-shirt and velcro patch. Level 3 and 4 participants will also qualify to earn our coveted UltraTrax Grey Wolf medal. Refreshments and food will be available for purchase after the race.
Event Highlights
Exhilarating Trails: Experience an incredible loop trail across Wachusett's scenic wooded terrain, offering stunning views and varied hiking paths.
All Level Challenge: UltraTrax is designed for beginners and experienced athletes alike. Bring a friend and level up the route by adding weight to carry!
Mission Driven
UltraTrax is committed to making a positive impact beyond its events. A portion of all proceeds is donated to the Conservation Lands Foundation.
Pick your distance
Running
Level 1: 7-Mile Course
Level 2: 14-Mile Course
Level 3: 21-Mile Course
Level 4: 28-Mile Course
Typical race-day weather
Based on 1 year of Open-Meteo archive data for this event's race dates in Princeton, plus the 3 days either side.
The sun rises at 6:10 AM and sets at 7:25 PM local time (EDT) in Princeton on August 30, 2026 — 13h 14m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
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Other races near Princeton
Different organizers, within 40 miles, in the next three months
Westminster Cracker Festival 5K
Freezer 5 Mile Road Race
"The Eleven" Memorial Ruck
Abby's House Hybrid 5K Run/Walk
🏃 Plan Your Next Race in Princeton
Find upcoming events by distance:
- Princeton 5K Races 2 races
- Princeton Running Calendar 2026 4 races
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 5 Princeton events
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