The 3rd WEOI (2025) will be held on June 27th – 29th, in a hybrid format in Volterra, Italy.
Sponsored by
Organized by
Participating Teams
In alphabetical order
 | Belgium On-site Team Leaders Robin Jadoul Petar Vitorac | Thomas De Bruyn Hasan Erdoğan Edward Rosseel Joaquim Schaeverbeke Alban Van Vyve Noé Zech |
 | France On-site Team Leaders Hugo Peyraud Magnin Oscar Fischler | Quentin Cottignies Ines Fischler Daniil Jarykaou Coraline Kalbfleisch Clemence Pham Julian Piau Yixuan Qu Hao Yuan Jiao |
 | Ireland On-site Team Leaders Suneet Mahajan Isaac Lee | Piotr Stelmaszek Weichen Huang Mykyta Telychko |
 | Italy On-site Team Leaders Dario Ostuni Lorenzo Ferrari | Niccolò Baronti Alessandro Damiani Leonardo Drago Alessandro Farcas Matilde Iannaccone Andrea Malmesi Sofia Maragò Diego Stocco |
 | Luxembourg On-site Team Leaders Pascal Zeihen Gilles Englebert | Alex Avila González Jae Ho Cho Raphael Johannes Le Goaller Omar Mouman Kinji Yoshida Sophie Zeihen Kaili Zhang |
 | Netherlands On-site Team Leaders Jelmer Firet Laura van der Lubbe | Boas Bakker Merel Beltman Karel Hofman Lucas Kuunders Chenyu Lin Frederique Scheffrahn Rens Van Der Avoird |
 | Portugal On-site Team Leaders Paulo Sousa | André Abreu Henri Campagnolo Tomás Faria Pedro Gonçalves Ricardo Mouro Diogo Rosado |
 | Spain On-site Team Leaders Jacobo Vilella Vilahur Amal Dokkar El Hamoudi | Andrii Basov Ricardo Batanero Moranchel Marc Bru Montoya Ariadna Franch Pérez Eulàlia Gaya Bretones David Lago Alonso Rodrigo Nieto Petinal Guillem Vizcarro Sánchez |
 | Switzerland On-site Team Leaders Charlotte Knierim Ferdinand Ornskov | Jonathan Braun Myriam Faltin Till Fischer Levin Glatz Hongjia Meng Andrej Ševera Jovian Soejono Ursus Wigger |
 | United Kingdom Hybrid Team Leaders Richard Forster David Mestel | Hanks Chong Adavya Goyal Seyoon Park Daria Sanina Isane Sekiguchi Kseniia Strelbytska Eva Tai |
Schedule
| Day | Time | Activity |
|---|---|---|
| June 27th (Friday) | 13:30 – 19:00 | Arrivals, tourism, transfer to Volterra Games and sports at SIAF |
| 19:00 – 20:30 | Dinner | |
| June 28th (Saturday) | 08:00 – 09:00 | Registration and breakfast |
| 09:00 – 12:00 | Introduction / Practice | |
| 12:00 – 13:30 | Lunch | |
| 14:00 – 19:00 | Contest | |
| 19:30 – 21:00 | Dinner | |
| 21:00 – 24:00 | Activities at SIAF | |
| June 29th (Sunday) | 07:00 – 08:00 | Breakfast |
| 09:00 – 11:00 | Task explanation / Awards ceremony | |
| 11:15 – 15:30 | Departures, packed lunch |
All weekend onsite activities will take place at SIAF in Volterra.
Environment
All contestants must participate using the same contest environment: a virtual machine which is mandatory to be running on their personal laptop.
As a reference, this is this year’s official virtual machine.
All contestants must be running from within this VM.
A guide to install and use the virtual machine can be found here.
Attention: This virtual machine has internet restricted to only allow access to the contest platform.