| Diamond League 2016 Paris | 400m (Women) | 50.75 | 3 | JAM | 2016-08-27 00:00:00 | FINAL | 1176 | |
| Olympic Games 2016 Rio | 400m (Women) | 51.53 | 4 | JAM | 2016-08-14 00:00:00 | SemiFinal 3 | 1145 | |
| Olympic Games 2016 Rio | 400m (Women) | 51.54 | 1 | JAM | 2016-08-13 00:00:00 | Round1 Heat8 | 1144 | |
| Diamond League 2016 Birmingham | 400m (Women) | 51.09 | 2 | JAM | 2016-06-05 00:00:00 | FINAL | 1162 | =SB |
| World Championship 2015 Beijing | 400m (Women) | 50.14 | 4 | JAM | 2015-08-27 00:00:00 | FINAL | 1200 | PB |
| World Championship 2015 Beijing | 400m (Women) | 50.82 | 10 | JAM | 2015-08-25 00:00:00 | Semi Finals | 1173 | |
| World Championship 2015 Beijing | 400m (Women) | 50.58 | 6 | JAM | 2015-08-24 00:00:00 | Round 1 | 1182 | |
| Commonwealth Games 2014 Glasgow | 400m (Women) | 51.09 | 3 | JAM | 2014-07-29 00:00:00 | FINAL | 1162 | |
| Commonwealth Games 2014 Glasgow | 400m (Women) | 51.02 | 1 | JAM | 2014-07-28 00:00:00 | SF2 | 1165 | |
| Commonwealth Games 2014 Glasgow | 400m (Women) | 52.25 | 1 | JAM | 2014-07-27 00:00:00 | H2 | 1117 | |
| Olympic Games 2012 London | 400m (Women) | 51.19 | 4 | JAM | 2012-08-04 00:00:00 | SemiFinal 2 | 1158 | |
| Olympic Games 2012 London | 400m (Women) | 51.05 | 2 | JAM | 2012-08-03 00:00:00 | Heat 2 | 1164 | |