First the good news, with Tasmania's girls on the board for the titles after collecting a win over Queensland North.

A 22-10 final period ensured the Tasmanians collected the points in a 64-55 victory.

Charli Kay led from the front with 22 points, five rebounds and one assist, while Taya Webb also put in a strong showing with 14 points, 10 rebounds and one assist.

The negative for the day came in the form of the boys team falling to South Australia Metro in their late afternoon encounter 72-61.

Skipper Luke Brown was enormous for the Tasmanian side with 23 points, 13 rebounds and two assists.

After a slow start Tasmania got itself back into the contest with a 24-15 second period to lead at half-time, with South Australia turning the tables with a 20-7 third quarter which set it on its way to victory before a tight final quarter.

The boys side collected its first win at the titles on Sunday against New South Wales Country.

Tasmania's girls side will play Vic Country on Tuesday, with the boys side to tackle Queensland South.

The girls' match will be at 3.30pm, and the boys' match at 11.30am.

The national under 16 championships, which are being hosted by the Darwin Basketball Association, will run until Saturday.