IRONMAN Chattanooga takes place on Sun, Sep 27, 2026 in Chattanooga, United States. The main route is 226 km.
- Date
- Sun, Sep 27, 2026
- Start
- Chattanooga 🇺🇸
- Distance
- 226 km
- Climbing
- 1,311 m
- Level
- Open to all
Full-distance IRONMAN triathlon in Chattanooga, Tennessee: a 3.8 km swim, 180 km bike and 42.2 km run (226 km total).
What this race demands
IRONMAN Chattanooga requires sustained multi-sport endurance across a 226-kilometer total distance, combining a 3.8-kilometer swim, a 180-kilometer bike leg with 1311 meters of elevation gain, and a 42.2-kilometer run.
Aero efficiency
The 180-kilometer bike leg demands sustained aerodynamic positioning and steady power output over many hours in the saddle to preserve leg muscles for the upcoming marathon.
Running durability
The 42.2-kilometer run requires structural durability and neuromuscular fatigue resistance to maintain forward progress after completing both the swim and the lengthy bike course.
Metabolic stamina
Covering the full-distance triathlon format demands continuous energy management across an extended duration of continuous exertion.
Given the extended duration of a full-distance triathlon, athletes should target 60 to 90 grams of carbohydrates per hour throughout the bike and run segments to sustain energy output.
Estimated finish times
Estimates by level, not promises. Your own number depends on your fitness on the day.
Your road to race day
Race day at IRONMAN Chattanooga is 4 weeks away. This is how a coach divides that time. The first phase starts now.
01Peak1 week · Aug 31, 2026 – Sep 6, 2026
The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.
02Taper2 weeks · Sep 7, 2026 – Sep 20, 2026
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
03Race week1 week · Sep 21, 2026 – Sep 27, 2026
Openers, rest and logistics. The work is done; the job now is arriving fresh.
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