IRONMAN 70.3 Knokke-Heist takes place on Sun, Sep 6, 2026 in Knokke-Heist, Belgium. The main route is 113 km.
- Date
- Sun, Sep 6, 2026
- Start
- Knokke-Heist 🇧🇪
- Distance
- 113 km
- Level
- Open to all
IRONMAN 70.3 Knokke-Heist features a swim in the Damsche Vaart canal in Sluis, a flat bike ride through Belgian and Dutch landscapes, and a run along the beach and coastal promenade in Knokke-Heist.
Official event pageWhat this race demands
IRONMAN 70.3 Knokke-Heist requires an athlete to sustain output across a canal swim, a flat bike leg spanning two countries, and a coastal run.
Aero sustainability
The flat bike course through Belgian and Dutch landscapes rewards sustained aerodynamic positioning and steady power output without the relief of significant climbs.
Surface transition
The run requires the structural durability to transition effectively from the bike to varying surfaces including a beach and coastal promenade.
A carbohydrate intake of 60 to 90 grams per hour is recommended to sustain energy levels throughout the duration of the race.
Your road to race day
Race day at IRONMAN 70.3 Knokke-Heist is 2 weeks away. This is how a coach divides that time. The first phase starts now.
01Taper1 week · Aug 24, 2026 – Aug 30, 2026
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
02Race week1 week · Aug 31, 2026 – Sep 6, 2026
Openers, rest and logistics. The work is done; the job now is arriving fresh.
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