Ironman Switzerland Thun

Sports event · Interlaken, Thun · 5 July 2026

This event is over – it has already taken place. This page remains available for reference.

Long-distance triathlon with swimming in Lake Thun (3.8 km), cycling (180.2 km), and running (42.2 km) through the Bernese Oberland. The event attracts hundreds of triathletes and spectators to the venue in Thun.

Official organiser website

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