| Event | 2015 SSE Airtricity Dublin - Marathon |
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| Name | Sean O Brien | Club | Watergrasshill A.C. | Race Number | 5666 | Date | 26/10/2015 |
| Gender | Male | Gender Position | 1295 of 8910 | Category | MS | Category Position | 348 of 2274 |
| 10K | 00:49:05 | Stage Position | 2252 |
| Halfway | 01:42:01 | Stage Position | 2078 |
| 30K | 02:25:20 | Stage Position | 1853 |
| Gun Time | 03:23:16 | Overall Position | 1373 |
| Chip Time | 03:22:02 | Chip Position | 1346 |