| SEA Games Cambodia 2023 | 400m (Women) | 53.27 | 3 | VIE | 2023-05-09 00:00:00 | FINAL | | |
| SEA Games 2021 | 400m (Women) | 52.83 | 1 | VIE | 2022-05-15 00:00:00 | FINAL | | |
| SEA Games 2019 | 400m (Women) | 52.80 | 1 | VIE | 2019-12-08 00:00:00 | FINAL | | |
| SEA Games 2017 | 400m (Women) | 52.48 | 1 | VIE | 2017-08-24 00:00:00 | FINAL | 1108 | |
| Singapore Open 2017 | 400m (Women) | 53.89 | 1 | VIE | 2017-04-29 00:00:00 | FINAL | 1054 | |
| Olympic Games 2016 Rio | 400m (Women) | 52.97 | 6 | VIE | 2016-08-13 00:00:00 | Round1 Heat6 | 1089 | PB |
| SEA Games 2015 | 400m (Women) | 52.00 | 1 | VIE | 2015-06-12 00:00:00 | FINAL | 1126 | |
| Asian Games 2023 Hangzhou | 400m Hurdles (Women) 0.762m | 58.49 | 4 | VIE | 2023-10-02 00:00:00 | H2 | | |
| SEA Games Cambodia 2023 | 400m Hurdles (Women) 0.762m | 56.29 | 1 | VIE | 2023-05-11 00:00:00 | FINAL | | |
| SEA Games 2021 | 400m Hurdles (Women) 0.762m | 56.41 | 2 | VIE | 2022-05-17 00:00:00 | FINAL | | |
| SEA Games 2019 | 400m Hurdles (Women) 0.762m | 56.90 | 1 | VIE | 2019-12-10 00:00:00 | FINAL | | |
| SEA Games 2017 | 400m Hurdles (Women) 0.762m | 56.06 | 1 | VIE | 2017-08-22 00:00:00 | FINAL | 1140 | GR NR |
| Asian Athletics Championship 2017 Bhubaneswar | 400m Hurdles (Women) 0.762m | 56.14 | 1 | VIE | 2017-07-08 00:00:00 | FINAL | 1137 | |
| Asian Athletics Championship 2017 Bhubaneswar | 400m Hurdles (Women) 0.762m | 57.34 | 1 | VIE | 2017-07-07 00:00:00 | Heat2 | 1101 | |
| Singapore Open 2017 | 400m Hurdles (Women) 0.762m | 56.66 | 1 | VIE | 2017-04-27 00:00:00 | FINAL | 1121 | CR |
| Olympic Games 2016 Rio | 400m Hurdles (Women) 0.762m | 57.87 | 7 | VIE | 2016-08-15 00:00:00 | Round1 Heat5 | 1085 | |
| World Championship 2015 Beijing | 400m Hurdles (Women) 0.762m | 57.31 | 28 | VIE | 2015-08-23 00:00:00 | Round 1 | 1102 | |
| SEA Games 2015 | 400m Hurdles (Women) 0.762m | 56.15 | 1 | VIE | 2015-06-10 00:00:00 | FINAL | 1137 | CR |