Boucles de l'Acier is a road-running series held in Florange, located in France's Moselle department. The course is set in the city center and features a 10 km race, a 5 km option, and children's races. The 10 km begins before the 5 km. Entry fees are 12 EUR for the 10 km and 8 EUR for the 5 km.
The 10 km can be completed as a single loop or two 5 km loops, with 41 meters of elevation gain. The 5 km has 15 meters of elevation gain. This course is suitable for runners aiming for a personal best. The 10 km holds an FFA label, allowing it to count towards qualification for the French 10 km championships. Aid stations are positioned at the halfway point for the 10 km and at the finish line for all races. The event accommodates both adult and child participants.