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.

Race information

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.
Trail runs nearby

Emerald Trail 5K Run/Walk & 10K Run is a community fundraising event in downtown Jacksonville, Florida, centered around the Lavilla School area at 633 North Lee Street. The event offers three distances: a 5K Run/Walk, a 10K Run, and a one-mile run/walk. It raises funds to support the Emerald Trail p..

Halloween Havoc at Dunn Cemetery is a 3.75-mile out-and-back trail race held on the Pioneer Trail in Jennings State Forest near Middleburg, Florida (1335 Long Horn Rd). Runners traverse a relatively flat loop that passes Dunn Cemetery at the 2-mile mark, under a moonlit sky with glow sticks lining t..

Turkey Trails - Jacksonville is a family-friendly running event hosted by Bodies Race Company in Jacksonville, Florida. It offers 5K and 10K races, a Kids Dash, and a 1‑mile untimed option, plus a virtual variant for remote participation. Course details are listed as TBD, but the event emphasizes a..

The Festivus 100 Miler Trail Run, held in Middleburg, Florida, offers multiple race distances including 100 miles, 50 miles, 35 miles, 14 miles, and 7 miles. This event caters to a wide range of trail runners, from ultra-distance athletes to those seeking shorter challenges. The race takes place on..

Last H.I.M. Standing is a running event in Jacksonville, Florida, held at 13130 Bartram Park Blvd. The race uses a last-man-standing backyard ultra format: competitors must complete a 4-mile loop every hour on the hour, with the aim of outlasting all others. The event grew from the F3 free men's wor..

Candy Cane Course - Jacksonville is a holiday-themed race by Bodies Race Company in Jacksonville, Florida. The event offers 1 mile, 5k, and 12k options, plus a Kids Dash, a virtual race, and volunteer opportunities. The location is listed as TBD in Jacksonville, Florida, for December 27, 2025.Partic..