| Event | 2012 Dublin - Marathon |
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| Name | Darren O' Brien | Club | optional | Race Number | 9932 | Date | 29/10/2012 |
| Gender | Male | Gender Position | 4531 of 8779 | Category | M40 | Category Position | 884 of 1608 |
| to 10K | 00:51:51 | Stage Position | 3731 |
| 10K to Half | 00:59:31 | Stage Position | 5000 |
| Half to 20Mile | 01:03:48 | Stage Position | 5919 |
| Gun Time | 03:58:17 | Overall Position | 5286 |
| Chip Time | 03:58:09 | Chip Position | 5392 |