| Event | 2015 SSE Airtricity Dublin - Marathon |
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| Name | Mark O Brien | Club | Pulse Tri Club | Race Number | 7031 | Date | 26/10/2015 |
| Gender | Male | Gender Position | 5032 of 8910 | Category | MS | Category Position | 1299 of 2274 |
| 10K | 00:57:38 | Stage Position | 7424 |
| Halfway | 02:02:11 | Stage Position | 7606 |
| 30K | 02:53:50 | Stage Position | 6890 |
| Gun Time | 04:07:16 | Overall Position | 6102 |
| Chip Time | 04:06:24 | Chip Position | 6098 |