| Diamond League 2023 Doha | 400m (Women) | 52.93 | 6 | JAM | 2023-05-05 00:00:00 | FINAL | | SB |
| World Championship 2022 Oregon | 400m (Women) | 50.36 | 5 | JAM | 2022-07-22 00:00:00 | FINAL | | |
| World Championship 2022 Oregon | 400m (Women) | 50.56 | 3 | JAM | 2022-07-20 00:00:00 | SF2 | | |
| World Championship 2022 Oregon | 400m (Women) | 50.15 | 1 | JAM | 2022-07-17 00:00:00 | H2 | | SB |
| Diamond League 2022 Rabat | 400m (Women) | 51.37 | 3 | JAM | 2022-06-05 00:00:00 | FINAL | | SB |
| Diamond League 2022 Doha | 400m (Women) | 51.69 | 2 | JAM | 2022-05-13 00:00:00 | FINAL | | SB |
| Olympic Games 2020 Tokyo | 400m (Women) | 49.61 | 4 | JAM | 2021-08-06 00:00:00 | FINAL | | |
| Olympic Games 2020 Tokyo | 400m (Women) | 49.34 | 1 | JAM | 2021-08-04 00:00:00 | SF3 | | PB |
| Olympic Games 2020 Tokyo | 400m (Women) | 50.89 | 1 | JAM | 2021-08-03 00:00:00 | H5 | | |
| World Championship 2019 Doha | 400m (Women) | 50.89 | 6 | JAM | 2019-10-03 00:00:00 | FINAL | | |
| World Championship 2019 Doha | 400m (Women) | 50.70 | 1 | JAM | 2019-10-01 00:00:00 | SF3 | | SB |
| World Championship 2019 Doha | 400m (Women) | 51.21 | 2 | JAM | 2019-09-30 00:00:00 | H4 | | |
| Diamond League 2019 Zurich | 400m (Women) | 51.90 | 6 | JAM | 2019-08-29 00:00:00 | FINAL | | |
| Diamond League 2019 Paris | 400m (Women) | 51.11 | 1 | JAM | 2019-08-24 00:00:00 | FINAL | | |
| Diamond League 2019 London | 400m (Women) | 50.74 | 2 | JAM | 2019-07-20 00:00:00 | FINAL | | SB |
| Diamond League 2019 Lausanne | 400m (Women) | 50.88 | 3 | JAM | 2019-07-05 00:00:00 | FINAL | | SB |
| Diamond League 2019 Rome | 400m (Women) | 51.39 | 3 | JAM | 2019-06-06 00:00:00 | FINAL | | =SB |
| Diamond League 2019 Shanghai | 400m (Women) | 51.39 | 4 | JAM | 2019-05-18 00:00:00 | FINAL | | SB |
| Diamond League 2018 Brussels | 400m (Women) | 51.40 | 5 | JAM | 2018-08-31 00:00:00 | FINAL | 1150 | |
| Diamond League 2018 London | 400m (Women) | 50.31 | 1 | JAM | 2018-07-22 00:00:00 | FINAL | 1193 | SB |
| Diamond League 2018 Lausanne | 400m (Women) | 50.84 | 5 | JAM | 2018-07-05 00:00:00 | FINAL | 1172 | |
| Diamond League 2018 Paris | 400m (Women) | 50.85 | 5 | JAM | 2018-06-30 00:00:00 | FINAL | 1172 | |
| Diamond League 2018 Rome | 400m (Women) | 50.69 | 2 | JAM | 2018-05-31 00:00:00 | FINAL | 1178 | SB |
| Diamond League 2018 Eugene | 400m (Women) | 51.01 | 5 | JAM | 2018-05-25 00:00:00 | FINAL | 1165 | |
| Commonwealth Games 2018 Gold Coast | 400m (Women) | 50.93 | 3 | JAM | 2018-04-11 00:00:00 | FINAL | 1168 | |
| Commonwealth Games 2018 Gold Coast | 400m (Women) | 51.21 | 1 | JAM | 2018-04-10 00:00:00 | SF3 | 1157 | |
| Commonwealth Games 2018 Gold Coast | 400m (Women) | 50.80 | 1 | JAM | 2018-04-09 00:00:00 | H2 | 1174 | |
| Diamond League 2017 Brussels | 400m (Women) | 51.72 | 7 | JAM | 2017-09-01 00:00:00 | FINAL | 1137 | |
| World Championship 2017 London | 400m (Women) | 50.86 | 6 | JAM | 2017-08-09 00:00:00 | FINAL | 1171 | |
| World Championship 2017 London | 400m (Women) | 50.56 | 2 | JAM | 2017-08-07 00:00:00 | SF1 | 1183 | SB |
| World Championship 2017 London | 400m (Women) | 51.27 | 2 | JAM | 2017-08-06 00:00:00 | Heat2 | 1155 | |
| Diamond League 2017 Paris | 400m (Women) | DNS | | JAM | 2017-07-01 00:00:00 | FINAL | 0 | |
| Diamond League 2017 Rome | 400m (Women) | 51.52 | 5 | JAM | 2017-06-08 00:00:00 | FINAL | 1145 | |
| Diamond League 2016 Paris | 400m (Women) | 50.33 | 2 | JAM | 2016-08-27 00:00:00 | FINAL | 1192 | |
| Olympic Games 2016 Rio | 400m (Women) | 50.97 | 6 | JAM | 2016-08-15 00:00:00 | FINAL | 1167 | |
| Olympic Games 2016 Rio | 400m (Women) | 50.69 | 2 | JAM | 2016-08-14 00:00:00 | SemiFinal 1 | 1178 | |
| Olympic Games 2016 Rio | 400m (Women) | 51.36 | 1 | JAM | 2016-08-13 00:00:00 | Round1 Heat1 | 1151 | |
| Diamond League 2016 London | 400m (Women) | 50.40 | 2 | JAM | 2016-07-22 00:00:00 | FINAL | 1189 | |
| Diamond League 2016 Oslo | 400m (Women) | 51.04 | 1 | JAM | 2016-06-09 00:00:00 | FINAL | 1164 | |
| Diamond League 2016 Shanghai | 400m (Women) | 50.98 | 2 | JAM | 2016-05-14 00:00:00 | FINAL | 1166 | |
| Diamond League 2017 Shanghai | 400m (Women) | 51.97 | 7 | JAM | 2016-05-13 00:00:00 | FINAL | 1128 | SB |
| World Championship 2015 Beijing | 400m (Women) | 50.42 | 5 | JAM | 2015-08-27 00:00:00 | FINAL | 1189 | |
| World Championship 2015 Beijing | 400m (Women) | 50.32 | 5 | JAM | 2015-08-25 00:00:00 | Semi Finals | 1193 | SB |
| World Championship 2015 Beijing | 400m (Women) | 50.34 | 1 | JAM | 2015-08-24 00:00:00 | Round 1 | 1192 | SB |
| Commonwealth Games 2014 Glasgow | 400m (Women) | 50.67 | 1 | JAM | 2014-07-29 00:00:00 | FINAL | 1179 | |
| Commonwealth Games 2014 Glasgow | 400m (Women) | 50.69 | 1 | JAM | 2014-07-28 00:00:00 | SF1 | 1178 | |
| Commonwealth Games 2014 Glasgow | 400m (Women) | 52.25 | 1 | JAM | 2014-07-27 00:00:00 | H4 | 1117 | |
| World Indoor Championship 2022 Belgrade | 400m (Women) Indoor | 50.79 | 3 | JAM | 2022-03-19 00:00:00 | FINAL | | NIR |
| World Indoor Championship 2022 Belgrade | 400m (Women) Indoor | 51.26 | 1 | JAM | 2022-03-18 00:00:00 | SF1 | | SB |
| World Indoor Championship 2022 Belgrade | 400m (Women) Indoor | 51.86 | 2 | JAM | 2022-03-18 00:00:00 | H5 | | |