William Bosi

United Kingdom • Sport climber
    Community profile
  • Grade context: UK
  • Ascents: 81
  • Photos: 1
  • Followers: 2
red pointed
successful ascents
distance climbed

Community Managed Account

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About William Bosi

William Bosi is a professional sport climber from Great Britain. Born in 1998 in 2020 he became the second British to ever climb a route graded 9b. He is also competing in the IFSC World Cup.


Notable ascents

By style By type Diff. band Ascents Hardest ascent
Sport Red point
47 9b+ King Capella 4 weeks ago
15 8b+ El Món de Sofía 4 years ago
14 8a+ Braguetasso about a year ago
Boulder Send
2 8B+ Practice of the Wild 2 years ago
1 8A Blind Drunk 3 years ago
By area Diff. band Ascents Hardest ascent
25 9b+ King Capella 4 weeks ago
Malham Cove
20 9a Rainshadow 4 years ago
13 9a+ La Ley Indignata 5 weeks ago
9a+ First Ley 6 weeks ago
11 8b+ Slow food 7 years ago
Magic Wood
2 8B+ Practice of the Wild 2 years ago

Climber Performance Rating (CPR) Timelines

For help understanding the CPR timeline chart see the CPR timeline explained article.

Sport timeline (ascents)

Boulder timeline (ascents)

grade pyramids

Sport 75 ascents

9b+ 1
9b 2
9a+ 2
9a 4
8c+ 4
8c 2
8b+ 4
8b 10
8a+ 9
8a 12
7c+ 5
7c 3
7b+ 5
7b 2
7a+ 6
7a 4
  Onsight   Flash   Red point   Other

Grades: French

Boulder 3 ascents

8B+ 1
8A 2
  Flash   Send   Other

Grades: Fontainebleau

Trad 1 ascent

5.12c 1
  Red point   Other

Grades: YDS

Climbs with

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