| Event | 2015 SSE Airtricity Dublin - Marathon |
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| Name | Dermot O Brien | Club | Race Number | 2845 | Date | 26/10/2015 | |
| Gender | Male | Gender Position | 1690 of 8910 | Category | MS | Category Position | 463 of 2274 |
| 10K | 00:49:02 | Stage Position | 2226 |
| Halfway | 01:41:13 | Stage Position | 1969 |
| 30K | 02:25:27 | Stage Position | 1873 |
| Gun Time | 03:29:04 | Overall Position | 1820 |
| Chip Time | 03:27:14 | Chip Position | 1724 |