| Diamond League 2017 Birmingham | 400m Hurdles (Women) 0.762m | 54.89 | 4 | GBR | 2017-08-20 00:00:00 | FINAL | 0 | |
| Diamond League 2016 Rome | 400m Hurdles (Women) 0.762m | 54.81 | 3 | GBR | 2016-06-02 00:00:00 | FINAL | 1179 | |
| Diamond League 2016 Doha | 400m Hurdles (Women) 0.762m | 54.53 | 1 | GBR | 2016-05-06 00:00:00 | FINAL | 1187 | WL |
| World Championship 2015 Beijing | 400m Hurdles (Women) 0.762m | 54.78 | 6 | GBR | 2015-08-26 00:00:00 | FINAL | 1180 | |
| World Championship 2015 Beijing | 400m Hurdles (Women) 0.762m | 54.80 | 7 | GBR | 2015-08-24 00:00:00 | Semi Final | 1179 | |
| World Championship 2015 Beijing | 400m Hurdles (Women) 0.762m | 54.74 | 5 | GBR | 2015-08-23 00:00:00 | Round 1 | 1181 | |
| Commonwealth Games 2014 Glasgow | 400m Hurdles (Women) 0.762m | 55.02 | 2 | SCO | 2014-07-31 00:00:00 | FINAL | 1172 | |
| Commonwealth Games 2014 Glasgow | 400m Hurdles (Women) 0.762m | 55.56 | 1 | SCO | 2014-07-29 00:00:00 | H1 | 1155 | |
| Olympic Games 2012 London | 400m Hurdles (Women) 0.762m | 56.03 | 7 | GBR | 2012-08-06 00:00:00 | SemiFinal 3 | 1141 | |
| Olympic Games 2012 London | 400m Hurdles (Women) 0.762m | 56.14 | 3 | GBR | 2012-08-05 00:00:00 | Heat 1 | 1137 | |