| Event | 2015 Brooks Snowdonia - Marathon |
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| Name | Delyth Williams | Club | Race Number | 2669 | Date | 24/10/2015 | |
| Gender | Female | Gender Position | 43 of 497 | Category | FOPEN | Category Position | 24 of 182 |
| Pen y Pass | 00:41:28 | Stage Position | 619 |
| Halfway | 01:48:39 | Stage Position | 400 |
| 23 Miles | 03:18:01 | Stage Position | 467 |
| Gun Time | 03:52:17 | Overall Position | 435 |
| Chip Time | 03:50:53 | Chip Position | 436 |