| Event | 2015 Brooks Snowdonia - Marathon |
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| Name | Lavinia Seward | Club | MARCH AC | Race Number | 2576 | Date | 24/10/2015 |
| Gender | Female | Gender Position | 448 of 497 | Category | F70+ | Category Position | 2 of 4 |
| Pen y Pass | 01:00:49 | Stage Position | 1826 |
| Halfway | 02:43:02 | Stage Position | 1435 |
| 23 Miles | 05:03:08 | Stage Position | 1780 |
| Gun Time | 06:03:35 | Overall Position | 1787 |
| Chip Time | 05:59:57 | Chip Position | 1780 |