| Olympic Games 2020 Tokyo | 400m Hurdles (Women) 0.762m | 55.91 | 7 | GBR | 2021-07-31 00:00:00 | H2 | | |
| World Championship 2019 Doha | 400m Hurdles (Women) 0.762m | 56.89 | 8 | GBR | 2019-10-02 00:00:00 | SF1 | | |
| World Championship 2019 Doha | 400m Hurdles (Women) 0.762m | 55.97 | 3 | GBR | 2019-10-01 00:00:00 | H5 | | |
| Diamond League 2019 London | 400m Hurdles (Women) 0.762m | 55.20 | 6 | GBR | 2019-07-20 00:00:00 | FINAL | | SB |
| Diamond League 2019 Oslo | 400m Hurdles (Women) 0.762m | 57.13 | 8 | GBR | 2019-06-13 00:00:00 | FINAL | | |
| Diamond League 2019 Doha | 400m Hurdles (Women) 0.762m | 56.01 | 6 | GBR | 2019-03-05 00:00:00 | FINAL | | SB |
| Diamond League 2018 Brussels | 400m Hurdles (Women) 0.762m | 56.15 | 4 | GBR | 2018-08-31 00:00:00 | FINAL | 1137 | |
| Diamond League 2018 Birmingham | 400m Hurdles (Women) 0.762m | 55.83 | 3 | GBR | 2018-08-18 00:00:00 | FINAL | | |
| European Championship 2018 Berlin | 400m Hurdles (Women) 0.762m | 55.31 | 3 | GBR | 2018-08-10 00:00:00 | FINAL | | |
| European Championship 2018 Berlin | 400m Hurdles (Women) 0.762m | 55.21 | 3 | GBR | 2018-08-08 00:00:00 | SF3 | | SB |
| Commonwealth Games 2018 Gold Coast | 400m Hurdles (Women) 0.762m | 56.41 | 6 | ENG | 2018-04-10 00:00:00 | H1 | 1129 | |
| World Championship 2017 London | 400m Hurdles (Women) 0.762m | 56.61 | 6 | GBR | 2017-08-08 00:00:00 | SF2 | 1123 | |
| World Championship 2017 London | 400m Hurdles (Women) 0.762m | 56.41 | 6 | GBR | 2017-08-07 00:00:00 | Heat5 | 1129 | |
| Diamond League 2016 Doha | 400m Hurdles (Women) 0.762m | 55.72 | 6 | GBR | 2016-05-06 00:00:00 | FINAL | 1150 | |
| World Championship 2015 Beijing | 400m Hurdles (Women) 0.762m | 55.41 | 10 | GBR | 2015-08-24 00:00:00 | Semi Final | 1160 | |
| World Championship 2015 Beijing | 400m Hurdles (Women) 0.762m | 54.52 | 3 | GBR | 2015-08-23 00:00:00 | Round 1 | 1188 | PB |