| Event | 2013 Snowdonia - Marathon |
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| Name | Jefferson Mason | Club | Rugby & Northampton AC | Race Number | 1087 | Date | 26/10/2013 |
| Gender | Male | Gender Position | 479 of 1217 | Category | M45+ | Category Position | 75 of 214 |
| Gun Time | 03:59:11 | Overall Position | 540 |
| Chip Time | 03:58:25 | Chip Position | 546 |
| Certificate | Download |