| Event | 2016 Brooks Snowdonia - Marathon |
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| Name | David Dean Williams | Club | Amman Kenyans | Race Number | 2040 | Date | 29/10/2016 |
| Gender | Male | Gender Position | 1291 of 1515 | Category | MSEN | Category Position | 424 of 483 |
| Pen y Pass | 00:45:55 | Stage Position | 1224 |
| Halfway | 02:11:25 | Stage Position | 1425 |
| 23 Miles | 04:25:28 | Stage Position | 1674 |
| Gun Time | 05:15:49 | Overall Position | 1676 |
| Chip Time | 05:15:43 | Chip Position | 1700 |