Sombrero Ultra Running Festival (SURF)
Middleburg, United States • 13 Feb 2026
Event overview
The Sombrero Ultra Running Festival (SURF) is the second annual multi-day running festival held at the Clay County Regional Sports Complex, 4790 Victory Lane, Middleburg, FL. The event date is February 13, 2026. Registration closes February 12.
The venue opens before the event to allow participants to set up tents, canopies, and crewing areas. There are no refunds for this event.
Race formats and support
Available race formats:
- 3-hour (Saturday)
- 3-hour (Sunday)
- 6-hour
- 12-hour day
- 12-hour night (overnight)
- 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 handled case-by-case. Footcare services are planned for 2026 and final details are under discussion. Medical personnel will be on site for the full 48-hour period; the lead medical clinician has over 20 years of emergency medicine experience.
Support and logistics: there is a runner village for crews, tents, and vehicles. RV parking is allowed with no hookups and an on-site fee of $15; payment options include cash, Venmo, and PayPal. The event is cupless; runners must bring their own bottles, hydration vests, or collapsible cups. Aid station items include water, electrolytes, soda, fruit, snacks, and a range of hot food. Custom technical shirts and awards are offered; to guarantee a shirt, register by January 15. Visit the organization's website for the most recent information.