| Event | 2017 Brooks Snowdonia - Marathon |
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| Name | Mark Darlow | Club | MARCH AC | Race Number | 498 | Date | 28/10/2017 |
| Gender | Male | Gender Position | 1245 of 1596 | Category | MV40 | Category Position | 251 of 304 |
| Pen-y-Pass | 00:48:02 | Stage Position | 1431 |
| 14Miles | 02:17:35 | Stage Position | 1372 |
| 23Miles | 04:10:06 | Stage Position | 1519 |
| Gun Time | 05:01:38 | Overall Position | 1603 |
| Chip Time | 04:57:29 | Chip Position | 1576 |