Triathlon

IRONMAN Chattanooga

IRONMAN Chattanooga took place on Sun, Sep 27, 2026 in Chattanooga, United States. The main route is 226 km.

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Date: Sun, Sep 27, 2026
Start: Chattanooga 🇺🇸
Distance: 226 km
Climbing: 1,311 m
Level: Open to all

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Full-distance IRONMAN triathlon in Chattanooga, Tennessee: a 3.8 km swim, 180 km bike and 42.2 km run (226 km total).

Official event page Races by IRONMAN

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

Competitive (~4.0+ W/kg bike, sub-3:15 marathon)8:30–9:30h

Advanced (~3.2–3.9 W/kg bike, 3:30–4:00 marathon)9:30–11:00h

Intermediate (~2.5–3.1 W/kg bike, 4:15–5:00 marathon)11:00–13:00h

First-timer / Finisher13:00–16:30h

Estimates by level, not promises. Your own number depends on your fitness on the day.

Frequently asked questions

When is IRONMAN Chattanooga?

IRONMAN Chattanooga took place on Sun, Sep 27, 2026 in Chattanooga, United States.

How long is IRONMAN Chattanooga?

The main route is 226 km.

What does IRONMAN Chattanooga demand?

How much climbing does IRONMAN Chattanooga have?

IRONMAN Chattanooga has 1,311 m of climbing.

Who is IRONMAN Chattanooga for?

IRONMAN Chattanooga is open to all participants.

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