Will Bosi



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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Entre-Prises, Hard Bar & adidas TERREX
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Best IFSC Results

This athlete has competed internationally

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.

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.

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. 

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...

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...

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...

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...

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

Video Will Bosi on Burden of Dreams: The Film

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

News New Peak District 8C for Will Bosi

Video Will Bosi | My Climbing Journey

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

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

News Will Bosi flashes Graceland, 8B+

News Will Bosi flashes The Dagger, 8B+

News Will Bosi claims the third ascent of Alphane

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

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

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

Fri Night Vid Will Bosi: Summer Sends

News Two Font 8Cs in a week for Will Bosi

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

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

News Will Bosi on Form in Czech Republic

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

Video Rab CWIF Semi-Finals and Finals Live Stream Today

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

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

News 2021 - A Year of Climbing News

News Alex Megos Repeats King Capella - 9b+?

Video Will Bosi talks Raven Tor routes and future plans

The Ticklist #50 Hard Sport Climbing

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

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

News Successful Trip to Switzerland for Will Bosi

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

Fri Night Vid An Interview with Will Bosi

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

News 2020 - A Year of Climbing News

News GB Climbing awarded £450K UK Sport Progression Funding

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

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

News IFSC European Championships Moscow (Olympic Qualifying Event) Livestreams

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

Video Reset Part 2 - Reopening the Walls with the ABC

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

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

News Practice of the Wild 8C by Will Bosi

News First Repeat of Hunger 9a by Will Bosi

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

News 3rd Place for Will Bosi in Uster EYC

News Jungle Speed & A Muerte by Will Bosi

Newsflash Rainshadow 9a for 17 year-old William Bosi

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...

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...

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...

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...

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...

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...

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...

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.

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.

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...

Adidas Terrex launch the Free Hiker 2 Gore-tex Hiking Shoe

Adidas Terrex launch the Free Hiker 2 Gore-tex Hiking Shoe built to keep feet dry and supported...

Outside Deals - Save up to 30% on Scarpa Mojito & DMM Trance harness

The latest deals from Outside are on DMM Trance harness - Save 24% and...

Women's Trad Festival 2022

This August saw the Women's Trad Festival return to the Peak District for a joyous and action-packed weekend of climbing....

Forging Ahead: Celebrating 40 years of DMM

Innovative, made in Wales, premium quality, and a little off the wall are all words that get mentioned...

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