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Half Marathon Calendar Seine-Maritime 2025-2026

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Explore the best half marathons in Departement Seine-Maritime for 2025-2026! Our updated list features 2 exciting races across the region. Find your next race in Departement Seine-Maritime below and join the running community at these great events!

November 2025
Nov
8
Saturday

Trail Nocturne des Lacs du Bois de l'Epinay

Trail Run 8 km 10 km Half Marathon
September 2026
Sep
20
Sunday

Courses & Marches des 3 Villes

Half Marathon
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