| Event | 2012 Dublin - Marathon |
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| Name | Siobhan Dempsey | Club | Race Number | 3350 | Date | 29/10/2012 | |
| Gender | Female | Gender Position | 93 of 3598 | Category | F40 | Category Position | 20 of 653 |
| to 10K | 00:49:23 | Stage Position | 2446 |
| 10K to Half | 00:52:04 | Stage Position | 1704 |
| Half to 20Mile | 00:53:13 | Stage Position | 1628 |
| Gun Time | 03:24:09 | Overall Position | 1593 |
| Chip Time | 03:22:54 | Chip Position | 1542 |