| Event | 2014 SSE Airtricity Dublin - Marathon |
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| Name | Derek O' Brien | Club | Race Number | 2899 | Date | 27/10/2014 | |
| Gender | Male | Gender Position | 1239 of 8775 | Category | M45 | Category Position | 151 of 1131 |
| 10K | Stage Position | 0 | |
| Half | 01:39:32 | Stage Position | 1719 |
| 30K | 02:21:24 | Stage Position | 1439 |
| Gun Time | 03:25:53 | Overall Position | 1325 |
| Chip Time | 03:24:45 | Chip Position | 1302 |