| Event | 2012 Dublin - Marathon |
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| Name | Jonathan O' Brien | Club | Race Number | 5584 | Date | 29/10/2012 | |
| Gender | Male | Gender Position | 5431 of 8779 | Category | MS | Category Position | 1900 of 3002 |
| to 10K | 00:59:56 | Stage Position | 8275 |
| 10K to Half | 01:06:45 | Stage Position | 8252 |
| Half to 20Mile | 01:06:05 | Stage Position | 6639 |
| Gun Time | 04:08:58 | Overall Position | 6518 |
| Chip Time | 04:08:41 | Chip Position | 6559 |