Triathlon (Middle Distance)

IRONMAN 70.3 Knokke-Heist

September 6, 2026 Knokke-Heist, Belgien
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Course description

Belgian North Sea race: a 1.9 km straight out-and-back swim off Heist Beach sheltered from chop by a dike, a very flat bike course through the polders and a run along the beach promenade.

Coach tip

Wind decides the flat bike leg – hold steady power rather than steady speed.

Water sits around 19 °C in September and the dike keeps it calm – a fast swim, but a cold one.

The promenade offers little shade and no shelter from the wind.

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