Three fighters from Nelson were victorious at the 10-bout card Saturday.
Howell also scored twice for Nelson in the marathon victory.
Beaver Valley's fifth straight win puts them three points ahead of Nelson.
The team has struggled to keep its head above water during the pool renos.
Banyard recently won five gold medals and a silver at the 55-plus B.C. Games.
Fight Night 2 will be held Saturday night at the Nelson Rod and Gun Club.