| Event | 2012 Snowdonia - Marathon |
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| Name | Jefferson Mason | Club | Rugby & Northampton AC | Race Number | 1077 | Date | 27/10/2012 |
| Gender | Male | Gender Position | 567 of 1212 | Category | M40+ | Category Position | 140 of 262 |
| Half Marathon | 02:04:13 | Stage Position | 1033 |
| Gun Time | 04:12:46 | Overall Position | 643 |
| Chip Time | 04:11:32 | Chip Position | 639 |