The Inferno Challenge Harns Marsh
Sat, Jul 18, 2026, 7:30 AM EDT
- Location
- Lehigh Acres, FL
- 3399 38th Street W, 33971
- Type
- RUN
Sign up and verify details on the organizer’s official page.
Vibe analysis coming soon
Course feel, difficulty, and community fit are being added to this listing. Check back, and always confirm details on the official registration page.
At a glance
Perks & features
- Awards
- Medal
- Swag Included
Awards
Medal
Swag IncludedFrom the public listing — confirm on the official site.
Auto-drafted from the public listing — confirm details on the official event page before signing up.
Distances & registration
3 optionsRegistration for all distances is through the official signup link above.
- 5K
Sat, Jul 18, 7:30 AM EDT · From $30.15
Opens Feb 4, 2026, 10:43 AM EST · Closes Apr 30, 2026, 7:59 PM EDT
- 12K
Sat, Jul 18, 7:30 AM EDT · From $32.80
Opens Feb 4, 2026, 10:43 AM EST · Closes Apr 30, 2026, 7:59 PM EDT
- 25K
Sat, Jul 18, 7:30 AM EDT · From $38.10
Opens Feb 4, 2026, 10:43 AM EST · Closes Apr 30, 2026, 7:59 PM EDT
Vibe Check
Steady Effort
Steady Effortwarm-day exposure
- Warm season
Based on terrain, weather, and distance data.
The course
- —
From the organizer
🔥 The Inferno 5K, 12K & 25K 🔥
Can You Beat the Heat?
Get ready to turn up the heat at one of the hottest races of the summer!
The Inferno 5K, 12K and 25K is coming to Harns Marsh in Lehigh Acres, FL on again Saturday, Saturday July 18th, 2026 — and we’re daring you to take on the sun, the sweat, and the Florida fire! The 5K is for everyone but the 12K and 25K are designed for endurance athletes and heat-hardened runners, this race pushes limits with gritty summer miles through Florida's sun-soaked terrain. This is your chance to prove you can go the distance — and handle the heat.
Race Day Details: 📍 Location: Harns Marsh, Lehigh Acres (Lee County, FL) 🕢 Start Time: 7:30 AM 🏃♂️ Distance: 5K,12K or 25K 🔥 Terrain: Flat and fast — but the real challenge is the heat and the sun! 🕢 Cut Off Time: 12:00 PM (All races) - No Exceptions!
Race Swag:
Custom finisher medal for all participants Inferno T Shirt Awards for top overall and age group finishers
Packet Pickup: 📍 Fleet Feet Fort Myers 🗓 Friday, July 17th 2026 🕔 5:00 PM – 7:00 PM
5K Course:
Click HERE!
25K:
Click HERE!
Dress light, hydrate early, and bring your sunscreen!
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