Japan was held to a 1-1 draw with North Korea on Thursday. But Australia's win over host China guaranteed that Japan will finish in the top two in the tournament being played in Jinan, China.
Japan remained first in the six-team standings with 10 points, two ahead of North Korea. Australia moved up to third place with six points, while China dropped to fourth with five points.
The tournament ends Sunday. The top two teams qualify for the Olympics.