Sombrero Sizzler

JUL
17
2027
A multi-hour running and rucking event on a flat 1.25 mile loop in Jacksonville with 3, 6, 9, and 12 hour options plus a 6 hour relay.
Sat 17 Jul 2027

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Sombrero Sizzler

Sombrero Sizzler is a timed endurance event held in Jacksonville, FL on July 17, 2027, organized by Sombrero Running. Runners and ruckers complete laps on a 1.25 mile paved loop that is three quarters asphalt and one quarter concrete, with a short grassy section at the end. The course runs on the former Cecil Field military base, is described as pancake flat, and has minimal turns with five wide left turns. Pine trees line the loop and provide shade for portions of the course.

Race options include:

  • 3 hours
  • 6 hours, with a relay team option for four person teams (any gender), team limit 10
  • 9 hours
  • 12 hours

Rucking follows honor-system weight guidelines: women 10 lbs or more, men 20 lbs or more; common items such as plates, bricks, or sandbags are allowed. One main aid station at the start/finish pavilion will offer standard ultramarathon foods and Skratch Electrolyte. Grilled food will be available throughout the day, including breakfast items, burgers with vegan options, brats, Italian sausage, and bacon.

Awards include overall top three in each event, team division awards based on participation, and additional special awards. Each participant receives a custom medal; additional swag is to be determined. There are no refunds; unpaid entries that do not attend may be treated as donations. Several hotels and restaurants are located within 3 to 5 miles of the course. Visit the organization's website for the most recent information.

12 Hour Run/ruck
3 Hour Run/ruck
6 Hour Relay
6 Hour Run/ruck
9 Hour Run/ruck

Events nearby

Women only beach 5K at Jacksonville Beach Seawalk Pavilion on Nov 8, 2026 with chip timing, festival village finish, on-course hydration, refreshments and age group prizes.
Charity 5 hour trail event at Sal Taylor Creek Preserve in Jacksonville with a flat 4 to 5 mile out and back loop and donations to Sombrero Outreach Foundation.
5K run and walk at Congaree and Penn farm in Jacksonville on December 5, 2026, for participants 21+ with chip timing, included race items, and farm passes available on site.
Trail races at Guana Research Reserve on December 6, 2026 featuring 50K, 50K team (2x25K) and 12K on mostly shaded, hard pack trails.
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