| Event | 2016 Brooks Snowdonia - Marathon |
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| Name | Jefferson Mason | Club | Race Number | 1271 | Date | 29/10/2016 | |
| Gender | Male | Gender Position | 1319 of 1515 | Category | M45 | Category Position | 278 of 309 |
| Pen y Pass | 00:54:20 | Stage Position | 1879 |
| Halfway | 02:33:29 | Stage Position | 1889 |
| 23 Miles | 04:39:11 | Stage Position | 1821 |
| Gun Time | 05:21:42 | Overall Position | 1732 |
| Chip Time | 05:21:00 | Chip Position | 1747 |