| Event | 2012 Dublin - Marathon |
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| Name | Brigid Byrne | Club | Race Number | 9540 | Date | 29/10/2012 | |
| Gender | Female | Gender Position | 2953 of 3598 | Category | F35 | Category Position | 631 of 739 |
| to 10K | 01:09:55 | Stage Position | 11044 |
| 10K to Half | 01:17:27 | Stage Position | 10711 |
| Half to 20Mile | 01:27:52 | Stage Position | 10707 |
| Gun Time | 05:29:39 | Overall Position | 11127 |
| Chip Time | 05:28:17 | Chip Position | 11015 |