Will Bosi

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United Kingdom

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Edinburgh born Will Bosi is one of the world's top climbers. At just 17 years of age, Will became the youngest Brit to have climbed 9a with his repeat of Rainshadow at Malham Cove. In 2018 he became first British male in 20 years to reach the final of a lead World Cup, and in 2021 he made the first ascent of his hardest route to date, King Capella, which he proposed at 9b+.

More recently, Will has turned his attentions towards bouldering, where he has quickly established himself as one of the leading lights of the scene, with three 9A ascents in just eighteen months.

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Latest News & Articles

News posts and Articles featuring Will

News First and Second ascents of Bultitude, 8B+

Dave MacLeod has made the first ascent of Bultitude, 8B+, near Inverness, Scotland.

7 16 Apr

News Will Bosi climbs Return of the Sleepwalker 9A

Will Bosi has made the first repeat of Daniel Woods Return of the Sleepwalker, 9A, in Black Velvet Canyon, Red Rocks, Nevada.

9 21 Feb

News Will Bosi climbs Sleepwalker, 8C+

Will Bosi has made a rapid repeat of Jimmy Webb's 8C+ boulder Sleepwalker, in Black Velvet Canyon, Red Rocks, Nevada.

2 22 Jan

Fri Night Vid Our Favourite Climbing Films from 2023

For our final Friday Night Video slot of 2023, we're taking a look back at some of our favourites from...

3 29 Dec, 2023

News Will Bosi upgrades Nova to 8C

Will Bosi has made the second ascent of Jana Švecová's Nova, 8B+, and has given the boulder an upgrade to...

8 Nov, 2023

Fri Night Vid Lords of Trad | Adam Ondra, Pete Whittaker and Will Bosi

Adam Ondra, Pete Whittaker, and Will Bosi explore the unique ethics and hard trad lines...

18 6 Oct, 2023

Article Kendal 2023: The Future of Hard Bouldering - Will Bosi, Jerry Moffatt, Shauna Coxsey

With the 2023 Kendal Mountain Festival on the horizon, we're looking...

25 Sep, 2023

News Second ascent of Ultra Instinct, 8C, for Will Bosi

5 13 Jun, 2023

Video Will Bosi on Burden of Dreams: The Film

6 Jun, 2023

Video Will Bosi climbs Alphane, 9A

2 5 Jun, 2023

News Will Bosi makes second ascent of Isles of Wonder Sit, suggests 8C

22 May, 2023

News New Peak District 8C for Will Bosi

3 May, 2023

Video Will Bosi | My Climbing Journey

20 Apr, 2023

Newsflash First Repeat of Burden of Dreams 9A by Will Bosi

27 14 Apr, 2023

Video Will Bosi talks Burden of Dreams, 9A replicas, and plans for the future

2 6 Apr, 2023

News Will Bosi flashes Graceland, 8B+

10 Feb, 2023

News Will Bosi flashes The Dagger, 8B+

2 8 Dec, 2022

News Ephyra 8C+ by Will Bosi

14 Nov, 2022

News Will Bosi claims the third ascent of Alphane

7 2 Nov, 2022

The Ticklist Will Bosi Boulders New Peak 8C+ and Classic Rock Round Record Broken

19 Aug, 2022

News Will Bosi Proposes Peak District's Hardest Problem: Honey Badger 8C+

8 12 Aug, 2022

News First Ascent of Scotland's Hardest Sport Route by Will Bosi - Free at Last 9a+

14 4 Jul, 2022

Fri Night Vid Will Bosi: Summer Sends

1 Jul, 2022

News Two Font 8Cs in a week for Will Bosi

9 14 Jun, 2022

The Ticklist Japan dominates the World Cup, Ramsden and Miller, and Will Bosi crushing

4 13 May, 2022

The Ticklist VIDEO - Bosi's World Class Trip, Soline Kentzel on El Cap, and Luke Dawson's First 9a

3 29 Apr, 2022

News Will Bosi on Form in Czech Republic

3 26 Apr, 2022

The Ticklist VIDEO - Hard Trad for Cookson and Wright, 9a+ for Berthier and flashes from Bosi

21 Apr, 2022

Video Rab CWIF Semi-Finals and Finals Live Stream Today

20 Mar, 2022

The Ticklist #59 E8 solo by Anna Taylor, Patagonian Link-up and Hard Boulders

2 28 Jan, 2022

The Ticklist #58 Alpine Ticks, Bosi, Raboutou and Ondra

5 21 Jan, 2022

News 2021 - A Year of Climbing News

30 Dec, 2021

News Alex Megos Repeats King Capella - 9b+?

5 22 Nov, 2021

Video Will Bosi talks Raven Tor routes and future plans

16 Nov, 2021

The Ticklist #50 Hard Sport Climbing

12 Nov, 2021

Newsflash First Ascent of Brandenburg Gate Project by Will Bosi, Proposes 9a+

23 8 Nov, 2021

Newsflash First Repeat of Mutation 9a by Will Bosi, Proposes 9a+

28 2 Nov, 2021

News Successful Trip to Switzerland for Will Bosi

2 20 Oct, 2021

The Ticklist #33 Will Bosi ticks Northern Lights, Hard Sport and Bouldering

2 11 Jun, 2021

Fri Night Vid An Interview with Will Bosi

15 Apr, 2021

News First Ascent of King Capella 9b+ by Will Bosi

59 29 Mar, 2021

News 2020 - A Year of Climbing News

5 28 Dec, 2020

News GB Climbing awarded £450K UK Sport Progression Funding

5 21 Dec, 2020

News Will Bosi and Molly Thompson-Smith make Combined Finals, Olympic Ticket within Reach

37 27 Nov, 2020

News Molly Thompson-Smith makes European Championship Lead Finals - Watch Live on BBC Sport

25 Nov, 2020

News IFSC European Championships Moscow (Olympic Qualifying Event) Livestreams

2 20 Nov, 2020

News Will Bosi flashes Isla de Encanta (Font 8B)

21 Sep, 2020

News Serenata 8C by Will Bosi

3 4 Sep, 2020

Video Reset Part 2 - Reopening the Walls with the ABC

24 Jul, 2020

News Superman Sit Start (Font 8B+) for Will Bosi

7 Jul, 2020

News Tomahawk 8B+ by Will Bosi

2 26 Jun, 2020

News Fast Ascent of Bewilderness (Font 8B+) for Will Bosi

5 5 Jun, 2020

Newsflash La Capella 9b by Will Bosi

18 5 Feb, 2020

News Practice of the Wild 8C by Will Bosi

2 4 Oct, 2018

News First Repeat of Hunger 9a by Will Bosi

31 3 Apr, 2018

News Will Bosi climbs The Prow (8A) at Kyloe

13 1 Aug, 2017

News Evolution 8c+ by Will Bosi

10 5 Jul, 2017

News 3rd Place for Will Bosi in Uster EYC

3 28 Jun, 2017

News Jungle Speed & A Muerte by Will Bosi

9 25 Apr, 2017

Interview Will Bosi on Hubble

28 Oct, 2016

Newsflash Will Bosi climbs Hubble 9a

20 25 Oct, 2016

Newsflash Rainshadow 9a for 17 year-old William Bosi

8 3 May, 2016

Latest Reviews for Will's Sponsors

Reviews from the UKC editorial team

Gear of the Year 2023

Our reviewers see a lot of gear, and while most is pretty good there will always be a few real stand-outs. Looking back over the last 12 months of rigorous in-the-field use, the review team have picked their personal highlights. Here it is, our...

6 Dec, 2023

OTS 2023 - Climbing Gear

At OTS 2023 in Liverpool we got a chance to check out some of the new climbing gear due to hit the shelves next year: a range of bouldering pads from Black Diamond; interesting harnesses from the likes of Mammut, Ocun and Wild Country; and DMM's latest...

24 21 Jun, 2023

OTS 2023 - Our Best of the Show

This year's Outdoor Trade Show has just wrapped up. Staged in a tropical Liverpool, the show brought practically all the brands with a UK presence under one roof. While a lot of the gear on display looked good, as always there were a few pieces in...

3 16 Jun, 2023

Adidas Terrex Free Hiker 2

"These shoes are fun - and that's something I wouldn't normally say about a walking boot..." Light, bouncy, and stylish, the Terrex...

25 Apr, 2023

Vertex - DMM's lightest ever technical axe

Filling an intermediate niche between DMM's existing ice axes, the Vertex is technically capable on lower grade...

14 21 Feb, 2023

UKC / UKH Gear of the Year 2022

Our hard working review team get through a mountain of kit every year. Amongst it all some items stand out from the crowd, and...

27 Dec, 2022

If it Ain't Broke - Gear that Goes On and On

In these days of growing environmental concern and shrinking budgets, we can't all be constantly buying brand...

46 14 Nov, 2022

Latest News from Will's Sponsors

Announcements direct from manufacturers

Write a review, win £100 DMM kit!

We want your help to populate our product reviews with your experience in using them, and you could win £100 of DMM kit in return.

26 Sep, 2023

The new Adidas TERREX Skychaser Tech Mid GORE-TEX

The TERREX SKYCHASER TECH MID GORE-TEX merges key benefits of hiking and trail running shoes, ensuring comfort while supporting speed and agility.

18 Apr, 2023

How The Adaptive Climbing Group Built A Paraclimbing Community | adidas TERREX

If you don't know about the Adaptive Climbing Group yet, then it's time you met this inspiring paraclimbing community. Watch this film to see what happens on a day of outdoor climbing at the crag with a...

10 Nov, 2022