Video: Adam Ondra vs Lexicon, world’s hardest trad flash

On 16/05/2025 Czech climber Adam Ondra made the first-ever flash ascent of a British trad climb graded E11, Lexicon at Pavey Ark in England.

On the 16th of May Czech climber Adam Ondra made the first-ever flash ascent of a British trad climb graded E11, Lexicon at Pavey Ark in England. Ondra was belayed by first ascensionist Neil Gresham who provided the beta, and this is now the hardest ever flash of trad climb. Here's footage of the historic ascent. 




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