Nguyễn Thị Oanh

At the Southeast Asian level, Nguyễn's first medal was a silver in the 3000 metres steeplechase at the 2013 SEA Games in Myanmar.[2] The following year, she won gold in the same event at the Asian Junior Athletics Championships, but due to illness, she had to take a break from running before resuming at the 2017 SEA Games in Kuala Lumpur.[2] There, she won a pair of gold medals in the 1500 metres and 5000 metres; she repeated this feat at the 2019 SEA Games in the Philippines, and also added a gold in the 3000 metres steeplechase.[2] At the 2021 SEA Games in Hanoi, she defended all three titles,[3] and did so again at the 2023 SEA Games in Phnom Penh, while also adding a gold in the 10,000 metres.[4] Notably, in the 2023 edition, due to a last-minute change in the schedule, the 1500 metres and 3000 metres steeplechase were held just 20 minutes apart.[5] With her wins, Nguyễn became the first Vietnamese to win four individual gold medals in a single SEA Games.[6]

At the Asian level, Nguyễn was a bronze medallist in the 3000 metres steeplechase at the 2018 Asian Games and 1500 metres and 5000 metres at the 2018 Asian Indoor Athletics Championships.[7] At the 2023 Asian Indoor Athletics Championships, she won gold in the 1500 metres.[8]

• 1500 metres – 4:13.88, 11 November 2020[1]
• 1500 metres indoor – 4:15.55, 11 February 2023[1]
• 3000 metres steeplechase – 9:43.83, 27 August 2018 (national and SEA Games record)[1][9]
• 5000 metres – 15:53.48, 10 December 2021 (national record)[1]
• 10,000 metres – 33:13.23, 17 December 2022 (national record)[1]