The Marathon Day is a collective and festive event. For your own safety, please do not run or walk alone those 5 kilometers on September 20th.
If you are the only one registered for the event, try to convince your colleagues to join you. Remember, you don't have to run or even walk. Taking part in the organization of buffet, preparing training sessions, or taking pictures of the event is also considered as a participation.
If they still hesitate, mention the good cause. For each registration on the platform, the Presidency of Bolloré Transport & Logistics will pay €3 to charity organisation.