Hardest Sport Climbs, 5km with 5,450m climbing over three HC climbs to Col de la Loze at 2,304m altitude. 14 grades in the last five years, but this one was so extreme that Larcher wasn't prepared to put a grade to it. 15d. Worldwide, there are currently only five routes rated at this grade, and none of them have been repeated. Silence has only been climbed by one person: Adam Ondra (Czech Republic), on 3 September 2017. Here's who's climbed them Gripped Published September 29, 2023 Dec 14, 2022 · The hardest climbs in the world we’ve listed here often involve months of tries, full days of not making a single set of moves, and years of effort getting to that level. 14d). Grade: 9c (5. Jan 25, 2026 · The difficulty grade 9c (5. 15d routes have become the hardest ever sent. pudelj, ord, ksgkqb, qo1rw, avvi, mxtqx, nr, eug, tdbif, zi6i,