Ironman Copenhagen — Course Guide

Ironman (Full Distance): 3800m / 180km / 42.2km

🏊 Swim

Distance 3800m

Water Type canal

Format open-water

Water Temperature 18°C

Wetsuit conditional

Current calm

Harbour swim in central Copenhagen — athletes swim through the city's clean harbour channels. Cool water (18-20°C) with wetsuit usually allowed. Unique urban experience swimming past modern Danish architecture.

🚴 Bike

Distance 180km

Elevation Gain ↑400m

Profile flat

Surface road

Topology out-and-back

Drafting Non-drafting

Fast, flat course heading south from Copenhagen through the Danish countryside. Two laps with virtually zero climbing. Strong headwinds on the exposed bridges are the main challenge. Smooth Danish roads and cycling infrastructure.

🏃 Run

Distance 42.2km

Elevation Gain ↑38m

Profile flat

Surface road

Topology out-and-back

Flat four-lap run through Copenhagen's parks and waterfront. Passes landmarks including the Little Mermaid, Nyhavn, and Christiansborg Palace. The iconic finish on the red carpet at Islands Brygge is unforgettable.

Transition Areas

T1 — Swim → Bike

T2 — Bike → Run

⚠ T1 and T2 are in different locations — plan logistics accordingly · Surface: pavement

📈 Elevation Profile

Swim

3800m

canal · open-water

Bike

↑400m

flat · 180km

Run

↑38m

flat · 42.2km

18°C

Air Temp

18°C

Water Temp

60%

Humidity

21 km/h

Wind

Get Your Training Plan

Free, personalized for this race

Get triathlon tips & race guides in your inbox

Race tips, training guides, and the latest from 400+ triathlons worldwide.