Boucles de Saint-Thonan 2026

Boucles de Saint-Thonan is a road-running event in Saint-Thonan, near Landerneau in Finistère, Brittany, held in early September. Participants can choose between a 5 km and a 10 km race. The 5 km begins in the morning, with the 10 km starting an hour later. A walking circuit with a group start is also available, making the day suitable for more than just regular runners. The 5 km is appropriate for those returning to running, while the 10 km is intended for runners seeking a more challenging effort. The course follows a 5 km loop through the Saint-Thonan countryside. 10 km participants complete the loop twice, allowing spectators to see runners multiple times. The circuit is not particularly demanding and is open to runners new to racing. The event is organized by the local association Courir tout simplement à Saint-Thonan. The 10 km race is part of the Challenge de l'Elorn. The atmosphere is local and social, with friends running together and residents attending. The race embraces the end-of-summer sentiment, with a French phrase about “closing the loop on your summer.”