| Name: | Matthew O'Brien | |
| Gender: | M | |
| Natonality: | AUS | |
| Date | Event | Overall | M | Distance | Time |
|---|---|---|---|---|---|
| 2012 | 2012-11-11 | Marysville 50km Ultramarathon (50km trail) | 47 | 37 | 50.000 km | 6:51:50 h |
| 2021 | 2021-04-24 | The GUMBaby (53.6km trail) | 4 | 4 | 53.600 km | 7:31:27 h |
| 2022 | 2022-10-15 | The Blackall 50 (50km trail) | 19 | 14 | 50.000 km | 5:58:12 h |