Overview
Race the 2027 Precision Fuel & Hydration IRONMAN 70.3 World Championship in Chattanooga, Tennessee - spectacular by nature with rivers, hills, and unforgettable scenery.
Spectacular by Nature With every step, every turn, something spectacular unfolds. The river stretches wide, rolling hills rise, and scenic Chattanooga reveals itself, demanding and unforgettable. It’s not you against the elements but moving with them. Here, nature and its people come together with a call that speaks to the soul. This is where racing feels alive. Full course details and maps are yet to be released. We endeavour to make these available as soon as possible.
Race categories
113K
IRONMAN 70.3
- Route
Swim
River
Bike
Hilly
Run
Rolling
Typical race-day conditions
Air 19–33 °C · Water 26 °CSwim course
The ROKA swim course will be revealed at a later time.Bike course
The ZOOT bike course will be revealed at a later time.Run course
The SALOMON run course will be revealed at a later time.
Update history
3 Oct 2026
Registration opened: — → https://www.ironman.com/races/im703-world-championship-2027
3 Oct 2026
Venue changed: Chattanooga, TN, United States → IRONMAN 70.3 World Championship, Chattanooga
3 Oct 2026
Time changed: 28 August at 0:00 → 28 August at 4:00
IRONMAN 70.3 World Championship
28 Aug – 29 Aug 2027