| Event | 2017 Snowdon International - Mountain Race |
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| Name | Gwion Williams | Club | ERYRI HARRIERS | Race Number | 603 | Date | 15/07/2017 |
| Gender | Male | Gender Position | 151 of 461 | Category | MV40 | Category Position | 30 of 80 |
| Team | |||||||
| Halfway Up | 00:29:48 | Stage Position | 198 |
| Summit | 01:04:04 | Stage Position | 204 |
| Halfway Down | 01:19:04 | Stage Position | 178 |
| Gun Time | 01:36:07 | Overall Position | 171 |
| Chip Time | 01:36:00 | Chip Position | 174 |