U15 World School Sport Games

largest international multi-sport event for 13 to 15-year-old school students

Connect with school & sport educators from around the world

11/09 – 19/09 2021 – Belgrade, Serbia




Sport Programme




Basketball 3x3







Table Tennis




* Each student can only be registered for one sport

For more information on the sport rules and format, please download the event document located at the bottom of the page.

Once in a Lifetime Experience

Represent Your School

Represent your country and school at the most prestigious international competitive school multi-sport event with athletes from all over the world.

Make Friends Around the World

Experience unique social interactions with others from around the world gaining opportunities to develop friends for life whilst travelling the globe.

Perform on the Global Stage

Compete in this unique international event, broadcast across online platforms with the world watching.

Key Figures

Unforgettable Days


School Students




Event Programme

Opening Ceremony

Under the spotlight of the opening event parade, proudly represent your country and school.

Sport Competition

Compete with school students from all over the world and take part in one of the 14 sports competitions.

Educational Activities

Participate in seminars and workshops with other participants to develop leadership skills and expand your knowledge on sport values.

Cultural Day

Discover the fantastic culture and heritage of the city of Belgrade and Serbia.

Nations Night

Create unforgettable memories and friendships during the farewell evening with all participants.

Charity Dinner

Come together in a social setting with all other heads of delegations as well as international sport stakeholders.

International Conference

Gather with international sporting institutions for a conference designed especially for physical education teachers.

Closing Ceremony

Aim to reach the podium and be awarded during the event’s closing ceremony.

Welcome to belgrade

Belgrade features an abundance of cultural attractions that draw visitors from across Europe. We are reminded of its rich history throughout the city, most notably in the Belgrade Fortress “Kalamegdan”. As one of Europe’s oldest cities, the capital of Serbia is an incredibly rich mosaic of different cultures, influences and styles with a mysterious and exotic atmosphere. Belgrade is a great destination with tons of interesting sights and attractions, impressive architecture, as well as a thriving cultural scene.

As host, the Serbian School Sport Federation (SSSF) is very experienced in hosting top sporting events, and was the host for the ISF WSC Volleyball and ISF WSC Basketball 3×3 events in 2018 and ISF WSC Football in 2019

Event Logo

Organisers & Partners




Media Partners

How to Participate


Declare your interest

ISF members and non-member organisations can declare their interest in registering school student teams for the event by completing the registration form, with more information located in the event document at the bottom of the page.


Complete the registration

By 15th May 2021, the ISF will select the participating teams, based upon balanced continental representation, who will then complete registration by providing additional information and paying the deposit.


Join this unique event

Once the registration has been completed, plan your transportation to and from the event and join us in the city of Belgrade from 26th June to 4th July, for this unique experience.

Frequently Asked Questions

Can a student be registered for multiple sports?

Each student can only be registered for one sport.

I am a student interested in participating in the event. How can I register?

Registration is open for schools only. We suggest you download the event document and share it with a school representative (PE teacher or school leader for example).

What transportation is provided?

All transportation to and from the event must be organised by the participants. However, during the event, transportation will be provided between accommodation and event site locations.

Can the event be postponed or cancelled because of the COVID-19 crisis?

The ISF and the local organising committee are constantly monitoring the situation to ensure safe conditions for the event. We strongly believe the event will be held in June 2021 but if sanitary conditions are not satisfactory, the ISF will take every necessary precaution which may lead to the postponement or cancellation of the event.

In the case of cancellation, will the paid fee be reimbursed?

Should the event be cancelled or postponed, all event fees shall be reimbursed. However, in the case of participants themselves cancelling, the deposit fee will be non-refundable.