| Event | 2017 SSE Airtricity Dublin - Marathon |
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| Name | Leonard O' Brennan | Club | Race Number | 7853 | Date | 29/10/2017 | |
| Gender | Male | Gender Position | 3251 of 10700 | Category | M40 | Category Position | 858 of 2504 |
| Team | |||||||
| 10K | 00:52:31 | Stage Position | 5194 |
| Halfway | 01:47:42 | Stage Position | 4241 |
| 30K | 02:33:07 | Stage Position | 3759 |
| Gun Time | 03:42:42 | Overall Position | 3667 |
| Chip Time | 03:41:03 | Chip Position | 3612 |