The first season featured eight teams from
Poland,
Czech Republic,
Lithuania,
Latvia,
Estonia,
Belarus and
Russia, including several national medalists with wide regional and international experience. The second season saw an expansion to 16 teams within two groups. While Belarusian and Russian teams were excluded, teams from
Israel,
Ukraine and
Kosovo joined. A team from
Serbia also joined but withdrew at the last moment, meaning the participating teams dropped to 15. In the third season the league were joined by teams from
Belgium,
Bulgaria,
Denmark,
Great Britain,
Netherlands and
Romania. The Final Four was held at the Danish city of
Aarhus in April 2024. == Competition format ==