Troll'Hoween - Pierre-Châtel 2026

Troll'Hoween is a Halloween running and trail event in Pierre-Châtel, Isère, organized by Troll Team Triathlon. The program begins with a children's race at 17:00, followed by the adult races at 18:00: a 10 km run, a 10 km trail discovery option for solo runners or adult relays, and a 10.88 km trail relay with 66 meters of elevation gain. The event is based on a straightforward local concept: to provide Pierre-Châtel with a festive Halloween outing suitable for children, solo runners, and relay teams. Its history is brief; Troll Team Triathlon initiated Troll'Hoween as its first edition. Therefore, its clearest identity currently lies in its Halloween timing, evening schedule, and the selection of accessible 10 km formats instead of a demanding mountain course.