Climb	Type	Suggested Grade	Date of Ascent	Notes
Burden of Dreams	Boulder	9A/V17	12th Apr 2023	Will said BofD was a hard 9A/V17. Video and Instagram Post
Alphane	Boulder	9A/V17	31st Oct 2022	A soft 9A boulder. Video and Instagram Post
Return of the Sleepwalker	Boulder	9A/V17	20th Feb 2024	Instagram Post
Honey Badger	Boulder	8C+/V16	10th Aug 2022	Honey Badger felt harder than Alphane. Video
Ephyra	Boulder	8C+/V16	8th Nov 2022	Instagram Post and Video
Isles of Wonder SDS	Boulder	8C/V15	21st May 2023	Proposed a 8C rather than an 8C+. Video
Ulls de Bruixa	Boulder	8C/V15	11th Feb 2021	Instagram Post and Video
Bulbasaur	Boulder	8C/V15	7th Apr 2022	Video
Trance	Boulder	8C/V15	9th Jun 2022	Video
Beautiful Mind	Boulder	8C/V15	14th Jul 2022	Video
The Wild South	Boulder	8C/V15	26th Apr 2023	Suggested it could be of an 8C+. Video
Serenata	Boulder	8C/V15	3rd Sep 2020	Video
Foundations Edge	Boulder	8C/V15	23rd Sep 2021	Climber Magazine
Drift	Boulder	8C/V15	27th Mar 2022	Video
Pata Ledovce	Boulder	8C/V15	4th Apr 2022	Video
Ghost Rider	Boulder	8C/V15	9th Apr 2022	Instagram Post
Tekuté Štěstí	Boulder	8C/V15	11th Apr 2022	Video
Iceberg	Boulder	8C/V15	12th Apr 2022	Video
Silent Singer	Boulder	8C/V15	6th Jun 2022	Video
Outliers	Boulder	8C/V15	12th Jun 2022	Video
Forgotten Gem	Boulder	8C/V15	6th Nov 2022	Instagram Post
Dreamtime	Boulder	8C/V15	6th Dec 2022	Video
Ultra Instinct	Boulder	8C/V15	8th Jun 2023	Video
King Capella	Sport Route	9b	9th Mar 2021	FA. Bosi initially proposed a 9b+ grade but Megos and Schubert downgraded it to a 9b. Instagram Post and Video
La Capella	Sport Route	9b	5th Feb 2020	Second 9b by a British climber and first one for Will.
La Furia de Jabali	Sport Route	9a+	4th Feb 2021	Will’s first FA. Instagram Post
Brandenburg Gate	Sport Route	9a+	7th Nov 2021	Video
Free at Last	Sport Route	9a+	25th Jun 2022	Instagram Post
First Ley	Sport Route	9a+	24th Feb 2021	Video
Mutation	Sport Route	9a+	Oct 2021	First repeat after 23 years!

Learning the Ropes & Competition

In the heart of Edinburgh, Scotland, a six-year-old Will Bosi discovered a passion that would shape the trajectory of his life. Nestled in the shadows of the city’s craggy peaks, he and his brother embarked on a thrilling exploration of the vertical world. Will wasn’t just climbing; he was evolving into a phenomenon.

By the ripe age of 14, his fingers had clenched the crags of 7c, 7c+, and even 8a grades.  Around the same time, he qualified for the Great Britain junior team and finished fourth in his first IFSC World Youth Championships in Singapore.

Bosi took first place on the podium at the European Youth Cup in 2013 with two silver medals in the lead and speed disciplines, as well as claiming his first 8a, 8b, and 8b+ successful climbs.

Outdoor Climbing

I think it’s fair to say that where Bosi has excelled is in his outdoor climbing. He began making a name for himself in the outdoor climbing world at the age of 16 in 2015, when he climbed his first 8b+ (V14) boulder, Monk Life, in North Eastern England. Later that year, Bosi set another milestone in his climbing career by becoming the youngest British climber to redpoint Steve McLure’s Rainshadow (9a), which was also his longest project at the time, taking him eight days to complete.

Five years later, after numerous accomplishments in his home country and abroad, Will made history by completing the fourth ascent of La Capella (9b), becoming only the second Brit to do so. Adam Ondra led the first ascent of the 15-meter-long route bolted in 1995 by David and Charles Brasco in 2011, followed by Stefano Ghisolfi and Daniel Woods.

Despite his apparent focus on crushing the outside scene, Bossi did not ignore the IFSC circuit, making the finals in the majority of European and World championships in lead, bouldering, and speed. Will began preparing for the 2020 Tokyo Olympics, which were unfortunately postponed due to the COVID pandemic. His quest for Olympic gold came to an end at the European Continental Championships, where he was denied the final Olympic spot.

Notable Ascents

Burden of Dreams

In Spring 2023, Will visited Nalle Hukkataival’s Burden of Dreams in Finland. This nerve-racking 9A/V17 boulder upped Bosi’s game, taking him more than 20 days to realize the second ascent seven years after Hukkataival’s FA.

“This definitely has been the biggest challenge I’ve ever taken on in bouldering,” he told Climbing Magazine shortly after the ascent, adding that it took “over double the days Alphane took.”

Will trained for 10 sessions on Aidan Roberts’ 3D-printed replica in order to lock the 8-move climb. He needed 14 more sessions to send it, making it his longest time spent on a boulder problem.

His first attempts on the boulder were live-streamed in March, and he nearly nailed the crux move on the first try. Will described the experience by saying that there are many factors involved in solving this problem, with his skin being the most problematic.

While projecting with a live audience, Bosi said that he enjoyed the experience, and he most definitely felt the hype of the people watching from all over the world.

Bosi solved Burden of Dreams on a warm spring day on April 12th after attempting several variants to get past the sharp, crystal-studded crimps, including taping his fingers. His ascent of BofD has put him on the list of one of the best boulderers in the world.

In the same interview for Climbing, he was asked how it felt compared to his most recent climb of Alphane, and he said, “I’d say it’s above Alphane in terms of difficulty, so if it’s solid 9A then Alphane would be soft 9A.”

With Budren of Dreams and Alphane under his belt, Will Bosi is the second person to have sent two V17 boulders up until now, and as he told 8a.nu, “ I think I’ve learned that I am capable of more than I thought I was and I’m looking forward to finding my own BoDs in the future.” So we’d better watch out for his next big achievement real soon. 

King Capella

On March 9, 2021, at just 22 years old, Will rose to the top of the world’s best climbers, finishing King Capella. Will proposed a grade of 9b+, which meant he was joining Adam Ondra and another five select few who have had the opportunity to redpoint this grade.

Bosi returned to Suriana, where he completed La Capella earlier that year, during a trip to Spain that began in December 2020 as part of his preparations for the next Olympic cycle. Aside from King Capella, he also accomplished two first ascents on La Furia de Jabali (9b) and Last Night (9a).

King Capella, which he FAd after 10 sessions, was unquestionably his greatest achievement for this trip. He describes the route as a powerful and fingery climb with a series of boulder problems stacked on top of each other.

In an interview with Climbing Magazine, Bossi expressed his awe at his realization, “With powerful moves that don’t let up and having big all points off moves, King Capella was like I got to be Chris Sharma for a day, it was amazing!”

Alex Megos and Jakob Schubert made the second and third ascent of King Capella, proposing a grade of 9b.