| World Championship 2023 Budapest | 35km Walk (Men) | 2:37:26 | 24 | IRL | 2023-08-24 00:00:00 | FINAL | | SB |
| World Championship 2022 Oregon | 35km Walk (Men) | 2:33:31 | 25 | IRL | 2022-07-24 00:00:00 | FINAL | | SB |
| Olympic Games 2020 Tokyo | 50km Walk (Men) | 3:53:40 | 10 | IRL | 2021-08-06 00:00:00 | FINAL | | |
| World Championship 2019 Doha | 50km Walk (Men) | 4:07:46 | 6 | IRL | 2019-09-28 00:00:00 | FINAL | | |
| European Championship 2018 Berlin | 50km Walk (Men) | 4:02:14 | 19 | IRL | 2018-08-07 00:00:00 | FINAL | | |
| World Championship 2017 London | 50km Walk (Men) | DNS | | IRL | 2017-08-13 00:00:00 | FINAL | 0 | |
| Olympic Games 2016 Rio | 50km Walk (Men) | 3:53:59 | 19 | IRL | 2016-08-19 00:00:00 | FINAL | 1139 | |
| World Championship 2015 Beijing | 50km Walk (Men) | DQ | | IRL | 2015-08-29 00:00:00 | FINAL | 0 | |
| Olympic Games 2012 London | 50km Walk (Men) | 3:55:01 | 29 | IRL | 2012-08-11 00:00:00 | FINAL | 1133 | PB |