| Event | 2010 Snowdonia - Marathon |
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| Name | Michael Grehan | Club | Dunstable Road Runners | Race Number | 655 | Date | 30/10/2010 |
| Gender | Male | Gender Position | 364 of 1047 | Category | M45+ | Category Position | 66 of 166 |
| Gun Time | 03:57:30 | Overall Position | 407 |
| Chip Time | 03:56:41 | Chip Position | 415 |