| Event | 2015 SSE Airtricity Dublin - Marathon |
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| Name | Gary O Brien | Club | Race Number | 533 | Date | 26/10/2015 | |
| Gender | Male | Gender Position | 1612 of 8910 | Category | M35 | Category Position | 435 of 1915 |
| 10K | 00:42:57 | Stage Position | 743 |
| Halfway | 01:30:36 | Stage Position | 723 |
| 30K | 02:19:55 | Stage Position | 1281 |
| Gun Time | 03:28:18 | Overall Position | 1736 |
| Chip Time | 03:28:09 | Chip Position | 1834 |