The WNBA-NBC Champions League is the annual competition for nine-pin bowling men's clubs, organized by the World Ninepin Bowling Association.

[1] [2] WNBA-NBC Champions League tournament has a stable competition formula.

[3] The following rules apply: Vacant starting-places will occupy after the ranking exclusively with participants in the Team’s World Cup.

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.