The event began with a round robin group stage. At its conclusion, the best teams progressed to the knockout stage, a series of single elimination games to determine the winners, starting with the semi-finals and ending with the final. Consolation matches were also played to determine other final rankings.
Mriya 2006 of Ukraine were the defending champions, but were eliminated at the group stage. The title was won by Madrid CFF, who claimed their first title in their second appearance in the final.[3]
Teams
Qualification
Usually, to enter, a club needed to be the champions of their country's most recent national championship. If a national association wished to enter more than one club, they could request for permission to do so from the organisers BSWW who would grant or reject the clubs a berth at the tournament depending on the total number of teams already registered.[4]
But as was the case in 2020, due to the effect of the COVID-19 pandemic on the competition, the normal rules regarding qualification were suspended and entry requirements relaxed: the event was opened up to simply any European club that wished to participate.[5]
Entrants
18 clubs from eight different nations entered the event.[2]
^Roquetas 2018 withdrew after playing two matches, the reasons for which were undisclosed; their opponents in their remaining fixtures received 3–0 walkover wins.
^Cáceres withdrew after playing one match due to numerous players and staff receiving exposure notifications for coming into close contact with persons testing positive for COVID-19;[7] their opponents in their remaining fixtures received 3–0 walkover wins.
^Huelva withdrew after playing two matches due to a member of the team testing positive for COVID-19;[8] their opponents in their remaining fixtures received 3–0 walkover wins.
^CB Caldas Rainha withdrew after the draw but before the tournament began.
Since Groups B consisted of five teams, for the second placed teams from Groups A and C, their results against the teams finishing in sixth place in their groups were discounted for this ranking.