Tan Hiep Hung beat Hanoi 7-2, with Bui Duc Quyen scoring twice. The win moved them into second place, with qualification dependent on the group's remaining result.
Thai Son Nam then drew 2-2 with Saigon Titans to complete an unbeaten group campaign. Two late Titans goals earned them a third consecutive draw, but their three points were insufficient to overtake Tan Hiep Hung. Hanoi finished last with one point.
The semifinalists are Thai Son Bac, Sahako, Thai Son Nam and Tan Hiep Hung. VFF's schedule has Thai Son Bac facing Tan Hiep Hung at 3 p.m. on September 12, followed by Thai Son Nam against Sahako at 5:30 p.m., both at Lanh Binh Thang.