Triathlon Duathlon de Cœur de Flandre

The Triathlon & Duathlon Coeur de Flandre #5 is a multi-sport endurance event scheduled for Thursday, May 14, 2026, in the commune of Thiennes, France. Organized by the Triathlon Club Hazebrouck, the event takes place on Ascension Day and offers a wide range of competitive categories for all ages, from young children to seasoned adults. The courses leverage the flat but often windy terrain of the French Flanders, providing an ideal setting for both beginners and athletes looking for a high-performance challenge.

Thiennes is a small, picturesque village in the Nord department of Hauts-de-France, with a population of approximately 900 residents. The area is part of the Lys valley, known for its tranquil rural atmosphere and vast agricultural landscapes. The demographic profile is primarily family-oriented and local, with a median annual household income of roughly €21,500. Geographically, the bike and run portions of the event typically wind through quiet country roads and along the banks of the Lys river. The climate in mid-May is generally pleasant but can be variable; average temperatures on May 14th range from a low of 8°C (46°F) to a high of 18°C (64°F), with potential breezes across the open plains of Flanders.

Registration for the event is digital and requires payment via credit card. Non-licensed FFTRI participants must pay an additional "Pass Competition" fee ranging from €4 to €22 depending on the race distance to cover insurance and temporary licensing. As of the current registration status, the flagship M-distance races are fully booked, with waitlists currently active. For participants and spectators seeking more information, the Triathlon Club Hazebrouck can be contacted via email at [email protected]. The event is a staple of the regional spring calendar, celebrated for its professional organization and the scenic beauty of the Flemish countryside.