| Edale Fell Race | Sat 8th Jun 2024 | 30/119 | 00:46:36 | See all Mark Clarkson at Edale Fell Race |
| SLMM | Sat 2nd Jul 2022 | 1/ | 11:58:04 | See all Mark Clarkson at SLMM |
| OMM | Sat 26th Oct 2019 | 1/ | 12:53:04 | See all Mark Clarkson at OMM |
| Edale Fell Race | Sat 8th Jun 2024 | 30/119 | 00:46:36 | See all Mark Clarkson at Edale Fell Race |
| SLMM | Sat 2nd Jul 2022 | 1/ | 11:58:04 | See all Mark Clarkson at SLMM |
| OMM | Sat 26th Oct 2019 | 1/ | 12:53:04 | See all Mark Clarkson at OMM |