All participants will be weighed on the competition day, Sunday 19 October 2025.

Participants will also have the opportunity to weigh between 15:00 and 18:00 on Saturday 18 October 2025. 

During the weigh-in the judo passport and the weighing card will be checked. Each judoka may report twice at the weigh-in. Exceeding the weight by more than 100 grams will result in direct exclusion in the specified class.

All data including weight can be changed online free of charge until Friday 3 Oktober 2025 23:59. On Saturday and the competition day the costs are € 5. The necessary new weighing card can be purchased at the box office on the competition day (this is present at the weigh-in).

Registered judoka who are unable to show a federal passport or whose passport details do not match those given, can be excluded from participation.

Stichting Open Alkmaars Judo tournament is not responsible for incorrect registrations of the judoka.