The Tata Steel Marquetteloop is Heemskerk’s local running event, featuring races for young children, older kids, recreational runners, teams, and half-marathon participants on the same schedule. The shortest Tata Kids of Steel Run covers 1,300 meters, with another kids’ race at 3,300 meters. Adult distances are 7, 14, and 21.1 kilometers. It is designed as a family event, not solely for competitive runners, offering separate starts for children up to ages 7, 12, and 15 before the longer races commence.
The event is a Heemskerk tradition, with Sportcentrum Heemskerk serving as the hub for race-day registration and start-number collection. The 14 km and 21.1 km races begin concurrently, followed shortly by the Heliomare Run. The 7 km race accommodates both recreational runners and a Team Run category. Participants receive a timed start number and a souvenir; early registrants have the option to have their start number mailed to their address.