| Event | 2012 Dublin - Marathon |
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| Name | Ruairi O' Brien | Club | Race Number | 7204 | Date | 29/10/2012 | |
| Gender | Male | Gender Position | 4256 of 8779 | Category | MS | Category Position | 1508 of 3002 |
| to 10K | 00:56:30 | Stage Position | 6485 |
| 10K to Half | 01:01:54 | Stage Position | 6176 |
| Half to 20Mile | 01:00:11 | Stage Position | 4236 |
| Gun Time | 03:55:24 | Overall Position | 4903 |
| Chip Time | 03:53:03 | Chip Position | 4689 |