May 17, 2026 · Chattanooga, Tennessee, USA
70.3 mi (113 km)Triathlon70.3 / Half

Ironman 70.3 Chattanooga

River City. Downstream.

Generate my fueling plan
Chattanooga, Tennessee, USARiver City. Downstream.
Course intelligence

Know the course before you race it.

Terrain

Tennessee River downstream swim (significant current assist). Rolling bike through Georgia and Tennessee farm roads. Flat run on the Riverwalk and bridge.

Conditions

May in Chattanooga: 68–84°F with Southern humidity building by midday. Can be warm to hot on the run.

Aid Stations

Four bike aid stations; run aid every mile. Strong Chattanooga local support.

Key Challenge

The downstream swim is significantly faster than any pool or lake swim — athletes exit earlier than expected, often underfueled going into T1.

Fueling questions

Nutrition answers for Ironman 70.3 Chattanooga.

Your race is closer than it feels

Stop guessing. Build your fueling plan now.

Every athlete who bonks had the fitness to finish. What they lacked was a plan. Five minutes from now, you have yours — personalized, printable, and ready for race day. $19 one-time.