| Event | 2019 ON Snowdonia Trail - Marathon |
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| Name | John Williams | Club | CERIST TRIATHLON | Race Number | 543 | Date | 14/07/2019 |
| Gender | Male | Gender Position | DNF of 470 | Category | M60+ | Category Position | DNF of 20 |
| Rhydd Du | 01:41:31 | Stage Position | 549 |
| Cae Gors | 02:04:01 | Stage Position | 611 |
| Beddgelert | 02:37:46 | Stage Position | 613 |
| Pen-y-Pass | 05:22:49 | Stage Position | 621 |
| Gun Time | DNF | Overall Position | DNF |
| Chip Time | DNF | Chip Position | DNF |