| Event | 2010 Snowdonia - Marathon |
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| Name | Sion Williams | Club | Race Number | 1813 | Date | 30/10/2010 | |
| Gender | Male | Gender Position | 836 of 1047 | Category | MOPEN | Category Position | 400 of 494 |
| Gun Time | 04:51:11 | Overall Position | 994 |
| Chip Time | 04:49:33 | Chip Position | 991 |