Flex Luthor | 9a+ Sport route at Fortress Of Solitude

Pics + Vids

Matty Hong
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Added at 05:10 on 13 October 2021
Carlo Traversi
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Added at 06:11 on 11 November 2021
Carlo Traversi
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Added at 21:11 on 15 November 2021
Jonathan Siegrest
Added at 08:12 on 14 December 2022


4 recorded ascents.

Climber Style FA Ascent Date Suggested Grade
Tommy Caldwell Lead (Worked) 2003 9a+

The hardest route in the US at the time, then Chris Sharma established Jumbo Love to establish the first 9b in the US.

Matty Hong Lead (Worked) 12th October 2021 9b

Second ascent.


Carlo Traversi Lead (Worked) 10th November 2021 9b

No real opinion on grade, so going with Matty's suggestion for now. Definitely not easy. [3]


[1] https://www.instagram.com/p/CWGuUCVl72B/

[2] https://www.instagram.com/p/CWT37golzRf/

[3] https://www.8a.nu/news/flex-luthor-9b-by-carlo-traversi-4k2wr

Jonathan Siegrest Lead (Worked) 31st October 2022 9a+

Very cool to revisit this crag after 12 years! TC [Tommy Caldwell] is forever a massive inspiration for me - I didn't realize how important it would feel to climb on this route. Went fully A Muerte after getting through the bottom crux for the first time. On the grade, for me personally, the route does not compare to the 9b I have done or tried - that being said it is still one of the hardest in Colorado for sure.