Vien clocked 2:13:64, breaking her own previous SEA Games record of 2:14:12. This is the second gold Vien has won at the SEA Games 29.Vien pocketed the first gold medal in the women’s 100m backstroke category on August 21.Vietnam’s national swimming team, consisting of 25 swimmers, will compete in all 38 categories.Vietnam have sent more than 470 athletes to the SEA Games 29 in Malaysia from August 19-30. They are scheduled to complete in 32 out of 38 sports with more than 6,000 rivals from 10 other countries in the region.The country is set to grab 49-59 gold medals to rank in the top three.At the previous games in Singapore in 2015, Vietnam finished third with 73 golds.