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Sombrero Ultra Running Festival (SURF)

Middleburg, United States • 13 Feb 2026

The Sombrero Ultra Running Festival (SURF) is an endurance running event held in Middleburg, Florida, at the Clay County Regional Sports Complex. It offers a variety of timed race options including 3, 6, 12, 24, and 48-hour runs, accommodating runners from first-time ultramarathoners to seasoned athletes aiming for personal bests. The course features a shorter loop with a single aid station providing hydration, snacks, and hot food throughout the event.

The festival atmosphere includes music, vendors, and themed giveaways, creating a fun and supportive environment. Amenities include medical support, foot care services, and a runner’s village for crews and RV parking. The event emphasizes community and endurance in a scenic Northeast Florida setting. Visit the organization's website for the most recent information.

United States Florida Middleburg

Race information

Website Registration
48 km
48 Hours
24 km
24 Hours
12 km
12 Hour - Night
12 km
12 Hour - Day
6 km
6 Hours
3 km
3 Hour - Saturday
3 km
3 Hour - Sunday
Visit the organization's website for the most recent information.
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