| Name: | O'Brien, Kieran |
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| Club: | Brisbane Trail Runners | ||
| Residence: | QLD | ||
| Year of birth: | 1986 | (Cat. german: M40) | |
| Date of birth: | 24.08.1986 | (Cat. internat.: M35) | |
| Nationality: | AUS ![]() |
Australia | |
| RunnerID: | 513028 | ||
37 search results (37 Events, 3946.609 km). (More)
| 2025 | 2 Events, 260.934 km (More) | ||||
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| 21.06.2025 | Brisbane Valley Rail Trail 100mi (AUS) | 100mi | |||
| 14:29:45 h | O'Brien, Kieran | Overall: 2 | M: 2 | Cat M35: 1 | |
| 22.03.2025 | Noosa Ultra-Trail 100km (AUS) | 100km | |||
| 10:34:18 h | O'Brien, Kieran | Overall: 3 | M: 3 | Cat M35: 1 | |
| 2024 | 1 Event, 50 km (More) | ||||
| 19.10.2024 | The Blackall 50 (AUS) | 50km | |||
| 6:53:53 h | O'Brien, Kieran | Overall: 68 | M: 51 | Cat M35: 9 | |
| 2023 | 2 Events, 210.934 km (More) | ||||
| 02.09.2023 | Coastal High 50 (AUS) | 50km | |||
| 5:13:05 h | O'Brien, Kieran | Overall: 7 | M: 7 | Cat M35: 3 | |
| 08.07.2023 | Brisbane Trail Ultra 100mi (AUS) | 100mi | |||
| 21:24:22 h | O'Brien, Kieran | Overall: 4 | M: 4 | Cat M35: 3 | |
| 2021 | 2 Events, 402.335 km (More) | ||||
| 09.-13.06.2021 | Irrational S.O.U.T.H. 200 Miler (AUS) | 200mi | |||
| 2d 04:50:01 h | O'Brien, Kieran | Overall: 1 | M: 1 | Cat M23: 1 | |
| 16.05.2021 | Glasshouse 50 Cook’s Tour - 50 Miles (AUS) | 50mi | |||
| 8:45:20 h | O'Brien, Kieran | Overall: 1 | M: 1 | Cat M23: 1 | |
| 2020 | 2 Events, 212.934 km (More) | ||||
| 02.-04.10.2020 | Brisbane Trail Ultra 100mi (AUS) | 100mi | |||
| 22:17:59 h | O'Brien, Kieran | Overall: 2 | M: 2 | Cat M23: 2 | |
| 19.01.2020 | Glasshouse Hares And Hounds 52 km Trail Run (AUS) | 52km | |||
| 4:29:31 h | O'Brien, Kieran | Overall: 1 | M: 1 | Cat M23: 1 | |
| 2019 | 5 Events, 504.335 km (More) | ||||
| 24.11.2019 | Stromlo Lightning Strike 50km (AUS) | 50km | |||
| 4:43:08 h | O'Brien, Kieran | Overall: 12 | M: 11 | Cat M23: 5 | |
| 06.-07.07.2019 | Brisbane Trail Ultra 100mi (AUS) | 100mi | |||
| 20:49:43 h | O'Brien, Kieran | Overall: 1 | M: 1 | Cat M23: 1 | |
| 11.05.2019 | Glasshouse 50 Cook’s Tour - 50 Miles (AUS) | 50mi | |||
| 8:03:36 h | O'Brien, Kieran | Overall: 2 | M: 2 | Cat M23: 1 | |
| 23.-24.03.2019 | Northburn Station 100 Miler Mountain Run (NZL) | 100mi | |||
| 27:21:18 h | O'Brien, Kieran | Overall: 3 | M: 3 | Cat M23: 1 | |
| 10.02.2019 | Glasshouse Hares And Hounds 52 km Trail Run (AUS) | 52km | |||
| 4:46:17 h | O'Brien, Kieran | Overall: 1 | M: 1 | Cat M23: 1 | |
| 2018 | 3 Events, 262.934 km (More) | ||||
| 08.-09.09.2018 | Glasshouse 100 - 100 Miles (AUS) | 100mi | |||
| 21:57:24 h | O'Brien, Kieran | Overall: 3 | M: 3 | Cat M23: 1 | |
| 29.07.2018 | Glasshouse Flinders Tour 50 km (AUS) | 50km | |||
| 4:02:05 h | O'Brien, Kieran | Overall: 2 | M: 2 | Cat M23: 1 | |
| 14.01.2018 | Glasshouse Hares And Hounds 52 km Trail Run (AUS) | 52km | |||
| 4:54:18 h | O'Brien, Kieran | Overall: 1 | M: 1 | Cat M23: 1 | |
| 2017 | 4 Events, 343.401 km (More) | ||||
| 09.-10.09.2017 | Glasshouse 100 - 100 Miles (AUS) | 100mi | |||
| 18:42:40 h | O'Brien, Kieran | Overall: 2 | M: 1 | Cat M23: 1 | |
| 30.07.2017 | Glasshouse Flinders Tour 50 km (AUS) | 50km | |||
| 4:52:45 h | O'Brien, Kieran | Overall: 4 | M: 3 | Cat M23: 1 | |
| 14.05.2017 | Glasshouse 50 Cook’s Tour - 50 Miles (AUS) | 50mi | |||
| 9:21:52 h | O'Brien, Kieran | Overall: 1 | M: 1 | Cat M23: 1 | |
| 22.01.2017 | Glasshouse Hares And Hounds 52 km Trail Run (AUS) | 52km | |||
| 4:49:05 h | O'Brien, Kieran | Overall: 2 | M: 2 | Cat M23: 1 | |
| 2016 | 5 Events, 667.401 km (More) | ||||
| 09.-11.12.2016 | Coast to Kosci Ultramarathon (AUS) | 240km | |||
| 28:36:46 h | O'Brien, Kieran | *QLD | Overall: 2 | M: 2 | Cat M23: 1 |
| 10.-11.09.2016 | Glasshouse 100 - 100 Miles (AUS) | 100mi | |||
| 20:14:46 h | O'Brien, Kieran | Overall: 1 | M: 1 | Cat M23: 1 | |
| 12.-15.08.2016 | Run Larapinta - Malbunka stage race (AUS) | 136km/4stages | |||
| 15:22:01 h | O'Brien, Kieran | Overall: 2 | M: 1 | Cat M23: 1 | |
| 24.07.2016 | Glasshouse Flinders Tour 50 km (AUS) | 50km | |||
| 4:40:56 h | O'Brien, Kieran | Overall: 1 | M: 1 | Cat M23: 1 | |
| 15.05.2016 | Glasshouse 50 Cook’s Tour - 50 Miles (AUS) | 50mi | |||
| 8:28:14 h | O'Brien, Kieran | Overall: 1 | M: 1 | Cat M23: 1 | |
| 2015 | 6 Events, 681.401 km (More) | ||||
| 11.-13.12.2015 | Coast to Kosci Ultramarathon (AUS) | 240km | |||
| 33:46:09 h | O'Brien, Kieran | Overall: 7 | M: 4 | Cat M23: 1 | |
| 12.-13.09.2015 | Glasshouse 100 - 100 Miles (AUS) | 100mi | |||
| 21:42:08 h | O'Brien, Kieran | Overall: 3 | M: 3 | Cat M23: 3 | |
| 16.08.2015 | River Run 100 Brisbane (AUS) | 100km | |||
| 9:09:53 h | O'Brien, Kieran | Overall: 1 | M: 1 | Cat M23: 1 | |
| 26.07.2015 | Glasshouse Flinders Tour 50 km (AUS) | 50km | |||
| 4:20:26 h | O'Brien, Kieran | Overall: 3 | M: 3 | Cat M23: 1 | |
| 17.05.2015 | Glasshouse 50 Cook’s Tour - 50 km (AUS) | 50km | |||
| 4:35:52 h | O'Brien, Kieran | Overall: 3 | M: 3 | Cat M23: 1 | |
| 05.04.2015 | Wild Horse Criterium 50 Miles (AUS) | 50mi | |||
| 8:25:58 h | O'Brien, Kieran | Overall: 3 | M: 3 | Cat M23: 2 | |
| 2014 | 5 Events, 350 km (More) | ||||
| 08.11.2014 | The Blackall 100 (AUS) | 100km | |||
| 11:57:15 h | O'Brien, Kieran | Brisbane Trail Runners | Overall: 6 | M: 4 | Cat M23: 3 |
| 13.09.2014 | Glasshouse 100 - 50 km (AUS) | 50km | |||
| 4:09:42 h | O'Brien, Kieran | Overall: 4 | M: 4 | Cat M23: 1 | |
| 24.08.2014 | River Run 100 Brisbane (AUS) | 100km | |||
| 8:30:43 h | O'Brien, Kieran | Overall: 2 | M: 2 | Cat M23: 1 | |
| 27.07.2014 | Glasshouse Flinders Tour 50 km (AUS) | 50km | |||
| 4:21:09 h | O'Brien, Kieran | Overall: 4 | M: 4 | Cat M23: 2 | |
| 06.04.2014 | Nerang State Forest 50 km Run (AUS) | 50km | |||
| 5:23:47 h | O'Brien, Kieran | Overall: 11 | M: 9 | Cat M23: 3 | |
Personal bests
Your list of personal best performances only contains performances of races which can be included into rankings.
In brackets rank in yearly international/national rankings.
| PB | 2025 | 2024 | 2023 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | |
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| 100km | 9:09:53 |
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9:09:53
(890/25) |
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Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2024 | 2023 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Glasshouse Flinders Tour 50 km | 5 | 4:02:05 | 4:52:45 | 4:40:56 | 4:20:26 | 4:21:09 | ||||||
| Glasshouse Hares And Hounds 52 km Trail Run | 4 | 4:29:31 | 4:46:17 | 4:54:18 | 4:49:05 | |||||||
| Glasshouse 100 - 100 Miles | 4 | 21:57:24 | 18:42:40 | 20:14:46 | 21:42:08 | |||||||
| Glasshouse 50 Cook’s Tour - 50 Miles | 4 | 8:45:20 | 8:03:36 | 9:21:52 | 8:28:14 | |||||||
| Brisbane Trail Ultra 100mi | 3 | 21:24:22 | 22:17:59 | 20:49:43 | ||||||||
| River Run 100 Brisbane | 2 | 9:09:53 | 8:30:43 | |||||||||
| Coast to Kosci Ultramarathon | 2 | 28:36:46 | 33:46:09 |





