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Triathlon

5150 Knokke-Heist

5150 Knokke-Heist took place on Sat, Sep 5, 2026 in Knokke-Heist, Belgium. The main route is 51.5 km.

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Date
Sat, Sep 5, 2026
Start
Knokke-Heist 🇧🇪
Distance
51.5 km
Level
Open to all

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Start free

The 5150 Knokke-Heist features a 1.5 km swim in Sluis, Netherlands, a fast and flat 40 km bike ride, and a 10 km run ending along the scenic Zeedijk promenade in Belgium.

What this race demands

The 5150 Knokke-Heist requires sustained aerobic output across a standard Olympic-distance triathlon format, combining a 1.5 km swim, a fast 40 km bike leg, and a 10 km run.

Aero position maintenance

The fast and flat 40 km bike leg rewards riders who can sustain a low, aerodynamic position for an extended period without significant drops in power output.

Bike-to-run transition

Executing a strong 10 km run immediately following a maximal effort on the bike requires high muscular endurance and pacing discipline during the opening kilometers.

Estimated finish times

Competitive1:55–2:10h
Intermediate2:15–2:45h
First-timer2:50–3:30h

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

Frequently asked questions

When is 5150 Knokke-Heist?

5150 Knokke-Heist took place on Sat, Sep 5, 2026 in Knokke-Heist, Belgium.

How long is 5150 Knokke-Heist?

The main route is 51.5 km.

What does 5150 Knokke-Heist demand?

The 5150 Knokke-Heist requires sustained aerobic output across a standard Olympic-distance triathlon format, combining a 1.5 km swim, a fast 40 km bike leg, and a 10 km run.

Who is 5150 Knokke-Heist for?

5150 Knokke-Heist is open to all participants.

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