| World Championship 2022 Oregon | 400m (Men) | 46.87 | 6 | AUS | 2022-07-17 00:00:00 | H1 | | |
| Olympic Games 2020 Tokyo | 400m (Men) | 45.15 | 3 | AUS | 2021-08-02 00:00:00 | SF2 | | |
| Olympic Games 2020 Tokyo | 400m (Men) | 44.94 | 2 | AUS | 2021-08-01 00:00:00 | H4 | | PB |
| World Championship 2019 Doha | 400m (Men) | 45.54 | 8 | AUS | 2019-10-02 00:00:00 | SF2 | | SB |
| World Championship 2019 Doha | 400m (Men) | 45.82 | 4 | AUS | 2019-10-01 00:00:00 | H2 | | |
| Diamond League 2018 Brussels | 400m (Men) | 46.62 | 4 | AUS | 2018-08-31 00:00:00 | FINAL | 1070 | |
| Commonwealth Games 2018 Gold Coast | 400m (Men) | 45.64 | 7 | AUS | 2018-04-10 00:00:00 | FINAL | 1136 | |
| Commonwealth Games 2018 Gold Coast | 400m (Men) | 45.55 | 3 | AUS | 2018-04-09 00:00:00 | SF1 | 1142 | |
| Commonwealth Games 2018 Gold Coast | 400m (Men) | 45.39 | 1 | AUS | 2018-04-08 00:00:00 | H5 | 1153 | |
| World Championship 2017 London | 400m (Men) | 46.27 | 7 | AUS | 2017-08-05 00:00:00 | Heat2 | 1093 | |
| Diamond League 2016 London | 400m (Men) | 46.16 | 7 | AUS | 2016-07-22 00:00:00 | FINAL | 1101 | |
| Commonwealth Games 2014 Glasgow | 400m (Men) | DNF | | AUS | 2014-07-29 00:00:00 | SF3 | 0 | |
| Commonwealth Games 2014 Glasgow | 400m (Men) | 46.26 | 2 | AUS | 2014-07-28 00:00:00 | H2 | 1094 | |
| Olympic Games 2012 London | 400m (Men) | 45.14 | 8 | AUS | 2012-08-06 00:00:00 | FINAL | 1170 | |
| Olympic Games 2012 London | 400m (Men) | 44.97 | 3 | AUS | 2012-08-05 00:00:00 | SemiFinal1 | 1182 | PB |
| Olympic Games 2012 London | 400m (Men) | 45.18 | 1 | AUS | 2012-08-04 00:00:00 | Heat6 | 1167 | PB |