| Event | 2012 Dublin - Marathon |
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| Name | Siobhan O'Reilly | Club | Clare Crusaders | Race Number | 4543 | Date | 29/10/2012 |
| Gender | Female | Gender Position | 331 of 3598 | Category | F35 | Category Position | 75 of 739 |
| to 10K | 00:52:21 | Stage Position | 3948 |
| 10K to Half | 00:57:30 | Stage Position | 3851 |
| Half to 20Mile | 00:57:48 | Stage Position | 3164 |
| Gun Time | 03:43:31 | Overall Position | 3387 |
| Chip Time | 03:41:36 | Chip Position | 3239 |