Sombrero Sizzler

About the Event

The Sombrero Sizzler returns to Jacksonville, Florida on July 18th, offering endurance runners a unique challenge across various distances in the heart of a former military base turned running paradise. This third annual event promises not just a race but an immersive experience that celebrates community and resilience under the scorching Florida sun.
As participants gather at Cecil Field, they'll find themselves on a beautifully shaded 1.25-mile loop course, with much of it covered in asphalt or concrete pathways, punctuated by short stretches of grassy terrain. The base's pine trees provide welcome relief from the heat during early morning hours, though runners must prepare for full sun exposure later in the day as they circle back to start/finish line located at a pavilion area equipped with ample aid stations and food options. The atmosphere is charged with anticipation as racers lace up their shoes or gear up for rucking, readying themselves for what promises to be an invigorating yet demanding event.
Since its inception in 2019, the Sombrero Sizzler has become a cornerstone of Jacksonville’s running calendar, attracting hundreds of participants each year. With several categories available from three-hour sprints to grueling twelve-hour endurance runs and relay options for teams, there's something for every level of runner or rucker looking to push their limits in this pancake-flat setting. Awards are given out not just by overall placement but also to those who demonstrate exceptional spirit and community engagement throughout the event, reflecting a commitment beyond mere physical achievement.
The Sombrero Sizzler unfolds on July 18th with pre-race setup beginning on Saturday, July 12th at 6 am, providing ample time for participants to familiarize themselves with the course before race day. Registration opens online through UltraSignup and includes fees ranging from $85 to $255 depending on chosen distance and relay options; early bird discounts may apply until June 30th. On-the-day packet pick-up occurs at the designated pavilion area starting at 6 am, with a pre-race briefing preceding each race's start time of 7:00 am.
Aid stations are strategically placed along the course’s main route and near the finish line, ensuring that all runners have access to hydration and sustenance throughout their journey. Expect grilled food options including vegan choices such as burgers and brats alongside hearty breakfast fare like bacon — perfect for fueling up before another lap around this fast and flat loop.
As July rolls in with average temperatures hovering around 28.8°C, participants should anticipate high humidity levels of about 78% while preparing themselves mentally and physically against the possibility of brief showers amounting to approximately 4.7mm rainfall throughout race day. With UV index reaching a "Very High" level at an 8.0 rating, protective gear such as sunscreen and sunglasses becomes essential.

12HR
12 Hours • Start: 07:00:00 • Fee: $130.00

12hour Ruck
12 Hours • Start: 07:00:00 • Fee: $130.00

3 hour Ruck
3 Hours • Start: 07:00:00 • Fee: $85.00

These values represent the 3-year monthly averages for July in Jacksonville.

thermostat Temperature

24.8° / 32.9°

wb_sunny Feels like

28.9° / 36.5°

light_mode Avg sunshine hours

11h 28m

water_drop Avg rainfall

4.7 mm

ac_unit Avg snowfall

—

air Avg wind speed

8.8 km/h (Light breeze)

opacity Sweat loss rate

Very high

terrain Course conditions

Hard and dry surface

sunny Max UV Index

Very High (8.0)

humidity_mid Humidity

78.7%

wb_twilight Sunrise

06:35

nightlight Sunset

20:28

About Jacksonville

Learn more about the host city, Jacksonville.

Jacksonville occupies one of the most coveted spots on the Atlantic coast. Set amongst abundant beaches and possessing an ideal subtropical climate, its crown jewel is the unique habitat and natural beauty of the St. Johns River. For this reason and more, "The River City" is a popular destination for vacationers looking for a laid-back Sunshine State escape.

Hotels & Places to Stay

Race Results

All-time top performances and historical records for Sombrero Sizzler.

Place	Name	Gender	Age	Year	City	Time
🥇	Ashley Leisher	F	27	'25	—	55.88
🥈	Katerina Michlik	F	24	'25	—	53.34
🥉	Verity Mathis	F	46	'24	—	52.071
4	Michelle Grenon	F	51	'24	—	52.07
5	Andrea Stillwell	F	36	'25	—	46.99
6	Emily Quintanilla	F	41	'24	—	43.18
7	Amanda Hall	F	48	'25	—	40.64
8	Charlotte Corriher	F	56	'24	—	31.751
9	Siri Khalsa	F	48	'24	—	31.75
10	Denise Easterday	F	51	'25	—	31.75

Place	Name	Gender	Age	Year	City	Time
🥇	Chris Clapp	M	55	'25	—	60.96
🥈	Scott Luggery	M	40	'25	—	59.69
🥉	Connor Land	M	20	'25	—	57.15
4	Zack Fischer	M	27	'24	—	55.88
5	Christopher Armstrong	M	44	'25	—	54.61
6	Joseph Merkley	M	37	'25	—	48.26
7	David Oppenheimer	M	63	'24	—	43.181
8	Erick Alldredge	M	31	'24	—	40.641
9	Michael Oliveros	M	41	'24	—	40.64
10	Daniel Berry	M	42	'25	—	40.64

Runner Reviews

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About the Event

Races Offered

12HR

12hour Ruck

3 hour Ruck

3HR

6 Hour Ruck Relay

6 hour Ruck

6 hour Ruck

6 hour Ruck

6HR

6HR Relay

9 hour Ruck

9HR

Weather History

About Jacksonville

Hotels & Places to Stay

Race Results