Mitch Foyle scored with only a minute left in regulation to lift the league-leading Beaver Valley Nitehawks past the Leafs 4-3 on Saturday in Nelson.
Dylan Kent, Dylan Heppler and Aiden Browell also scored for the Nitehawks (36-4-3), who have won 14 in a row. Nitehawks goaltender Owen Sikkes made 27 saves in net.
Sawyer Hunt, Ryan Piva and Dale Howell replied for the Leafs (18-19-5), who are winless in four games. Devin Allen meanwhile stopped 21-of-25 shots.
Nelson next hosts Castlegar at 2 p.m. on Sunday.