IRONMAN Chattanooga
The half at Chattanooga is a river-swim race. You cover 1,900 m in the Tennessee River, then head out on 90 km through the hills that ring the city, and finish with 21.1 km on the riverfront and park paths back in town.
The bike is the part people underestimate. There is no single decisive climb, just repeated short hills that break rhythm and reward riders who are willing to change gear constantly rather than grind one number.
Mid-May in Tennessee is warm and humid without being extreme, though the run has long open stretches and the river valley holds moisture. If you have raced only in dry heat, the humidity will cost you more than you expect.
The downtown location is one of the better ones in North American racing: transition, finish, and most accommodation sit within walking distance, which removes a lot of race-morning logistics.
Who it's for
Built for experienced triathlon athletes.
Good fit if you…
- are experienced in triathlon and want a hard race
- want a well-known, high-status race
Maybe not if you…
- are brand-new to triathlon: start with something shorter
What should you know about IRONMAN Chattanooga?
- Date
- Sunday, 16 May 2027
- Format
- Half / 70.3
- Water temp
- 21°C · 70°F
Need to know
When is IRONMAN Chattanooga 2027?
IRONMAN Chattanooga takes place on Sunday, 16 May 2027. Dates can move year to year, so confirm the exact day on the official race page before you book travel.
How do you register for IRONMAN Chattanooga?
Where does IRONMAN Chattanooga take place?
Chattanooga, United States
When has IRONMAN Chattanooga taken place before?
FAQs
What do athletes ask about IRONMAN Chattanooga?
Where is IRONMAN Chattanooga held?
IRONMAN Chattanooga is held in Chattanooga, the United States. The race page has the venue location and a map, and links straight through to the official site for the precise start area.
What distances can you race at IRONMAN Chattanooga?
IRONMAN Chattanooga offers Half / 70.3. The Half / 70.3 is a 1.9 km swim, 90 km bike and 21.1 km run. Pick your distance and enter on the official site. Each format usually has its own start wave and cut-offs.
What's the water temperature at IRONMAN Chattanooga?
The swim at IRONMAN Chattanooga is around 21°C (70°F), based on the official average for the venue. Water temperature drives wetsuit rules, so check the organiser's current wetsuit policy before race day.
How do I enter IRONMAN Chattanooga?
You enter IRONMAN Chattanooga through the official organiser. Registration is handled on their site, and FindMyNextRace links you straight there. Places for popular editions can sell out early, so register as soon as entry opens.
Is IRONMAN Chattanooga part of a race series?
Yes, IRONMAN Chattanooga is part of the IRONMAN series. Series events often share a qualification, points, or championship pathway, so if you're chasing the series, check how this race fits its calendar.
How should I train for IRONMAN Chattanooga?
Training for IRONMAN Chattanooga depends on your target distance and current fitness. Most athletes follow a structured block of 12–20 weeks for a Half / 70.3 effort. Build a plan tailored to your race date and level with AI Training Plan (https://aitrainingplan.app).
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