| From | United Kingdom 🇬🇧 |
| Gender | Male |
| Climbing | |
| Hardest Boulder (Worked) | 8A |
| Hardest Sport (Worked) | 8b |
| Hardest Trad (Worked) | E10 |
| Hardest Trad (Onsight) | E8 |
| Family | |
| Leonard Birkett (parent) | |
A prolific force in the Lake District in the UK, establishing many hard and bold trad lines throughout the 1990s and 2000s.
| From | United Kingdom 🇬🇧 |
| Gender | Male |
| Climbing | |
| Hardest Boulder (Worked) | 8A |
| Hardest Sport (Worked) | 8b |
| Hardest Trad (Worked) | E10 |
| Hardest Trad (Onsight) | E8 |
| Family | |
| Leonard Birkett (parent) | |