Sombrero Sizzler

Sombrero Sizzler : July 18, 2026

Sombrero Sizzler is a timed running and rucking event in Jacksonville, FL at 5827 New World Road. The event takes place on a 1.25 mile paved loop that is three quarters asphalt and one quarter concrete walking path, with a short grassy segment at the end. Trees line much of the loop, providing shade in the morning and more sun later in the day. The course is described as pancake flat with minimal turns (five wide right turns) and is located on a former military base (Cecil Field).

Distances and formats

• 3 hours
• 6 hours with a relay team option
• 9 hours
• 12 hours

The main aid station is at the pavilion/start-finish area and will offer typical ultra foods and Skratch Electrolyte. Food will be grilled on site during the event, including breakfast items, burgers with vegan options, brats, Italian sausage, and bacon. Parking is available on the road leading into the pavilion area so vehicles pass by the loop for easy access to personal gear.

Rucking follows honor-system weight guidelines: women 10 lb or more, men 20 lb or more; plates, bricks, or sandbags are permitted. Awards include overall top three in each event, additional special awards, and relay awards depending on participation. Each entrant receives a custom medal; other swag items are to be determined. There are no refunds; nonattendance may be treated as a donation. Several hotels and restaurants are located within 3 to 5 miles. Visit the organization's website for the most recent information.