| Event | 2015 SSE Airtricity Dublin - Marathon |
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| Name | Robert O Brien | Club | Athy Triathlon Club | Race Number | 2792 | Date | 26/10/2015 |
| Gender | Male | Gender Position | 4299 of 8910 | Category | M40 | Category Position | 996 of 1919 |
| 10K | 00:53:45 | Stage Position | 4630 |
| Halfway | 01:50:54 | Stage Position | 4206 |
| 30K | 02:37:36 | Stage Position | 3695 |
| Gun Time | 03:59:08 | Overall Position | 5099 |
| Chip Time | 03:56:02 | Chip Position | 4729 |