
Overview
Make history at the first IRONMAN Belgium Knokke-Heist. Race through stunning coastal landscapes and finish along the beautiful North Sea shore.
Nature and Style in a Seaside Resort Knokke-Heist is located on the north-west region of Belgium and it is the greenest municipality along the coast. Come and be astonished by the geat diversity of its beaches, dunes, mudflats and salt marshes, as well as polders, ponds, reed swamps and woods. You will also have the possibility to enjoy and discover luxurious hotels, great restaurants and art galleries.
Race categories
226K
IRONMAN
- Route
Swim
River
Bike
Flat
Run
Flat
Typical race-day conditions
Air 16–21 °C · Water 19 °CSwim course
The new one-loop 3.8km ROKA swim course is located in the historic fort city of Sluis in the Netherlands. The swim course in the Damsche Vaart promises a tidal-free, wave-free swim with unparalleled support!Run course
The final 42.2 km run will take place along the beach in 2 loops, while enjoying the beautiful Zeedijk and being cheered on by the residents of Knokke-Heist as the athletes cross the finish line.
Update history
5 Oct 2026
Sold out: false → true
3 Oct 2026
Time changed: 5 September at 0:00 → 5 September at 4:00
IRONMAN Belgium Knokke-Heist
Sun, 5 Sept 2027