| Event | 2012 Dublin - Marathon |
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| Name | Serena Horkan | Club | Charity entry | Race Number | 17837 | Date | 29/10/2012 |
| Gender | Female | Gender Position | 2439 of 3598 | Category | F35 | Category Position | 522 of 739 |
| to 10K | 01:07:57 | Stage Position | 10690 |
| 10K to Half | 01:12:02 | Stage Position | 9937 |
| Half to 20Mile | 01:18:03 | Stage Position | 9623 |
| Gun Time | 04:52:01 | Overall Position | 9945 |
| Chip Time | 04:51:49 | Chip Position | 9893 |