In the qualifying round, Anh Vien finished in 2nd place with a time of 4 minutes 47 seconds 56, thereby qualifying for the final. This is Anh Vien's forte, so she is expected to bring home a medal for Vietnamese sports in the final.
However, in the final, the gold hope of the Vietnamese sports delegation Nguyen Thi Anh Vien failed to compete for medals. Vien only came in 6th with a time of 4 minutes 42 seconds 81.
According to coach Dang Anh Tuan, Anh Vien missed the first 50m in butterfly swimming. That mistake caused Anh Vien to miss the rhythm and miss the opportunity to compete with other athletes in the top, so she could not win a medal.
In the final in the men's 400m freestyle event, athlete Nguyen Huu Kim Son could not bring home any medals when he only finished in 6th place with a time of 3 minutes 51 seconds 67.
