Sombrero Ultra Running Festival (SURF)

Middleburg, United States • 13 Feb 2026

Event information

The Sombrero Ultra Running Festival (SURF) is the 2nd annual multi-day ultrarunning event on February 13, 2026, held at the Clay County Regional Sports Complex, 4790 Victory Lane, Middleburg, FL. Registration closes on Thu, Feb 12 at 11:59 PM ET. The event weekend includes vendor presence, themed giveaways for Valentine’s and Presidents Day, and on-site music.

Race formats and onsite services

Available race durations include:

  • 3-hour (two separate 3-hour events)
  • 6-hour
  • 12-hour day
  • 12-hour night
  • 24-hour
  • 48-hour

Timing is provided by a professional timing company. Pacers are permitted only for the 24-hour and 48-hour events after a runner has completed 12 hours; pacers must register with race staff and exceptions are reviewed case-by-case. The venue offers a runner’s village for canopies, tents, and crew areas. RVs are allowed without hookups; an RV parking fee of $15 is payable at the site by cash, Venmo, or PayPal.

There will be a single aid station located at the start/finish area, passed twice each loop. This is a cupless race; runners must provide their own bottles, hydration vests, bladders, or collapsible cups. Aid station supplies include water, electrolyte drink, sodas, fruits, hot food items, and savory options. Volunteers will sanitize hydration igloos and aid station surfaces as part of sanitation protocols. Medical personnel will be on site for the full 48 hours, and footcare services are being arranged for 2026. Shirts, belt buckles, medals, and awards are planned; a shirt guarantee requires registration by 1/15. Visit the organization's website for the most recent information.

Race information

48 hr
48hr
24 hr
24hr
12 hr
12hr - Night
12 hr
12hr - Day
6 hr
6hr
3 hr
3hr - Saturday
3 hr
3hr - Sunday
Visit the organization's website for the most recent information.
Trail runs nearby

This Ain't Your Mothers 50K and Trail Marathon on January 25, 2026 in Middleburg Florida offers single track, waterfalls, stream crossings and scenic vistas on the Pioneer Trail. Choices from 7K to 50K suit racers and adventurers.

Celebrate the Angry Tortoise's 13th anniversary at Cary State Forest on Feb 21 2026 with flat, fast trail courses in 25K and 50K. Well supported aid stations, post race lunch, and scenic forest roads make for a fun day.

Challenge yourself at the Jacksonville Trail Experience at Diamond D Ranch, an early season Spartan Trail that blends fast, runnable sections with muddy, ankle biting terrain. Choose 10K or 21K to test speed and grit.

Join the Safe Animal Shelter Fundraiser Trail Run in Middleburg Florida for scenic miles on the Sandridge Trail while helping local pets in need. Choose from a half marathon, 10K or 5K on wide flat trails, enjoy swag and a raffle entry.