| Diamond League 2018 Zurich | 400m Hurdles (Women) 0.762m | 55.00 | 4 | USA | 2018-08-30 00:00:00 | FINAL | 1173 | |
| Diamond League 2018 Birmingham | 400m Hurdles (Women) 0.762m | DNF | | USA | 2018-08-18 00:00:00 | FINAL | | |
| Diamond League 2018 London | 400m Hurdles (Women) 0.762m | 55.47 | 4 | USA | 2018-07-21 00:00:00 | FINAL | 1158 | |
| Diamond League 2018 Lausanne | 400m Hurdles (Women) 0.762m | 53.90 | 3 | USA | 2018-07-05 00:00:00 | FINAL | 1207 | SB |
| Diamond League 2018 Rome | 400m Hurdles (Women) 0.762m | 53.97 | 1 | USA | 2018-05-31 00:00:00 | FINAL | 1205 | SB |
| Diamond League 2018 Eugene | 400m Hurdles (Women) 0.762m | 54.33 | 3 | USA | 2018-05-25 00:00:00 | FINAL | 1194 | SB |
| Diamond League 2018 Shanghai | 400m Hurdles (Women) 0.762m | 59.51 | 8 | USA | 2018-05-12 00:00:00 | FINAL | 1036 | |
| Diamond League 2017 Eugene | 400m Hurdles (Women) 0.762m | 54.09 | 3 | USA | 2017-05-28 00:00:00 | FINAL | 1201 | |
| Diamond League 2016 Birmingham | 400m Hurdles (Women) 0.762m | 54.63 | 3 | USA | 2016-06-05 00:00:00 | FINAL | 1184 | |
| Diamond League 2016 Rome | 400m Hurdles (Women) 0.762m | 57.64 | 8 | USA | 2016-06-02 00:00:00 | FINAL | 1092 | |
| Olympic Games 2012 London | 400m Hurdles (Women) 0.762m | 53.92 | 5 | USA | 2012-08-08 00:00:00 | FINAL | 1207 | PB |
| Olympic Games 2012 London | 400m Hurdles (Women) 0.762m | 54.74 | 2 | USA | 2012-08-06 00:00:00 | SemiFinal 3 | 1181 | |
| Olympic Games 2012 London | 400m Hurdles (Women) 0.762m | 54.31 | 1 | USA | 2012-08-05 00:00:00 | Heat 4 | 1194 | PB |