The WNBA-NBC Champions League is the annual competition for nine-pin bowling men's clubs, organized by the World Ninepin Bowling Association. It is playing since 2002, and the first season the competition was named as Euroleague. <noinclude></noinclude>
WNBA-NBC Champions League tournament has a stable competition formula. The following rules apply:
Vacant starting-places will occupy after the ranking exclusively with participants in the TeamâÂÂs World Cup.
All qualified teams are divided into two pots (seeded and unseeded) and then drawn into a bracket of 16 teams during an official ceremony. The knock-out ties are played in a two-legged format, with the exception of the final four. The Final Four usually takes place in the weekend at the turn of March and April.