| Event | 2015 SSE Airtricity Dublin - Marathon |
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| Name | David O Brien | Club | Race Number | 3587 | Date | 26/10/2015 | |
| Gender | Male | Gender Position | 1567 of 8910 | Category | MS | Category Position | 420 of 2274 |
| 10K | 00:46:36 | Stage Position | 1454 |
| Halfway | 01:39:02 | Stage Position | 1566 |
| 30K | 02:21:14 | Stage Position | 1438 |
| Gun Time | 03:27:40 | Overall Position | 1687 |
| Chip Time | 03:26:45 | Chip Position | 1678 |