She finished first in 4 minutes and 43.33 seconds while her teammate Nguyen Khanh Linh came second in 4 minutes and 43.40 seconds.
As of morning of June 4, the Vietnamese athletics team earned 6 gold and 4 silver medals at the Games.
The four other gold medals were obtained in the afternoon of June 3.
Le Thi Tuyet Mai captured one gold in the women’s 400m hurdles with a time of 1 minute and 1.87 seconds. Duong Thi Thao claimed another with a result of 1.74 metres in the high jump event.
In the men’s 800m run, Duong Phu Toan crossed the finishing line first in 1 minute and 55.44 seconds while Luong Binh Duong earned a silver medal with 1 minute 55.75 seconds.
Also on June 3, in the men’s 3,000m run, Nguyen Le Hoang Vu and Nguyen Hoang Thinh secured the first and second places with respective results of 9 minutes 29.65 seconds and 9 minutes 30.41 seconds.
Another silver was captured by Pham Xuan Tien in the men’s long jump, and a bronze went to Trieu Thi Binh in the women’s 3,000m run.
Themed “Connect to shine together”, the 13th ASEAN Schools Games gathers more than 1,300 students, coaches from 10 countries in the region, namely Brunei, Cambodia, Indonesia, Laos, Malaysia, Myanmar, the Philippines, Singapore, Thailand, and Vietnam.
The event takes place from May 29 to June 9, featuring six sports: swimming, basketball, badminton, track and field, Pencak Silat, and Vovinam.
