Will Bosi



United Kingdom
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Will is 22 and based in Edinburgh, Scotland. At 17, Will became the youngest Brit to climb 9a at the time with Rainshadow at Malham Cove. Since then, Bosi has become one of the leading lights of GB Climbing. In 2018, he reached the final of IFSC Chamonix Lead Climbing competition which was the first time a male had reached a lead final since 1998. In 2020, Bosi became the first Brit to climb 9b abroad with his ascent of La Capella. If confirmed at 9b+, Bosi would be the first Brit to climb the grade with his ascent of King Capella, placing him in an elite club at the top tier of the sport.



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adidas Outdoor, Entre-Prises & Hard Bar
View the reviews and news from Will's sponsors.

Best IFSC Results

This athlete has competed internationally

Latest News & Articles

News posts and Articles featuring Will

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

In this week's episode of The Ticklist, Theo talks through the action from the latest IFSC Boulder World Cup in Seoul, Paul Ramsden and Tim Miller's gnarly Himalayan ascent, and another update from the on-form Will Bosi.

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

In this week's episode of The Ticklist, we cover Will Bosi's world-class trip to the Czech Republic, Soline Kentzel's ground-up, all free ascent of Golden Gate on El Cap, and Luke Dawson's ascent of...

News Will Bosi on Form in Czech Republic

Will Bosi has achieved a world class tick list of hard boulders and sport climbs during a trip to the Moravský Kras area of the Czech Republic, where he sampled some of the local eighth and ninth-grade classics — with none other than Adam Ondra acting as...

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

In this week's episode of The Ticklist, we talk about yet another hard...

Video Rab CWIF Semi-Finals and Finals Live Stream Today

After a year's hiatus due to you-know-what, the Climbing Works International Festival (CWIF) returned...

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

An E8 solo, a Patagonian link-up and some hard bouldering... 

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

In this week's Ticklist, we've got hard ascents from Will Bosi, Brooke Raboutou, and Adam 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

DMM Spire and Spire Tech axes

Light yet solid; simple but effective - DMM's new Spire walking axe and Spire Tech mountaineering axe may not win awards for innovation, but both are superb value for money, says Dan Bailey, with the Spire Tech in particular being a bit of a wi...

Five Ten NIAD Lace - an Updated Classic

The Five Ten Anasazi Pink needs little introduction. This flat, stiff, lace-up shoe has been a mainstay in many climbers' bags for decades. But how does its successor, the NIAD Lace, compare? Nick Brown investigates.


With uproar still shaking the forums at the phasing out of the cult classic Anasazis, all eyes were on Five Ten for the new NIAD range. We recently reviewed the NIAD VCS. Here Rebecca Ting offers a different take on the lower volume version. Does the NIAD VCS LV manage...


The Five Ten NIAD VCS is the latest evolution of the classic Anasazi. Famously a jack-of-all-trades, this comfortable, high performance shoe...

Five Ten Hiangle, Hiangle LV and Hiangle Pro

Rob Greenwood looks at the three recent models in Five Ten's Hiangle range - the Hiangle, Hiangle LV and...

Five Ten Crawe - a performance all-rounder

The Crawe manages to blend excellent technical performance on edges with good all-round use and comfort, reckons...

Comfy All-Day Rock Shoes

For beginners taking their first steps on the rock, or more experienced climbers looking for a foot-friendly rock shoe for long...

Latest News from Will's Sponsors

Announcements direct from manufacturers

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 when DMM comes up in conversation. For 40 years we've proudly manufactured lifesaving climbing and working at height equipment at our...


Climb after climb, the adidas Five Ten NIAD VCS Climbing Shoes deliver all-around performance. Versatile Stealth® C4™ rubber edges, grips and smears across all surfaces, indoors and out. Extended toe rubber maximises contact area for increased friction. The...

New Climbing Gear Spring / Summer '21

Next up in our Spotlight gear round-ups is climbing gear. We've chatted with brands about the latest hardware, ropes, harnesses, helmets and every other form of gear. Plus, everything is hitting the shops imminently...

New Footwear Spring / Summer '21

In the absence of any trade show this year, we've created our own. Normally, shows tend to focus on products...

Five Ten Hiangle Pro

Made for the demands of modern bouldering competitions, these climbing shoes are built on the same last and with the same materials...

The New Five Ten Hiangle - an update of a classic

Built on the same last as the previous Hiangle, these shoes are built for high-precision...

Five Ten CRAWE

Designed in collaboration with Swiss bouldering legend Fred Nicole for technical bouldering or sport routes, these climbing shoes...

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