| Climber Name | # Ascents Recorded | Notes |
|---|---|---|
| John Thornton | 2 | |
| John Yablonski | 2 | References[1] Portrait by Dean Fidelman, 1978 https://www.instagram.com/p/Bz_TXWJjs6R/ |
| Jonathan Reti | 2 | |
| Jon Clark | 2 | |
| Joseph Mullett | 2 | |
| Josh Muehring | 2 | |
| Joshua Forteau | 2 | References[1] https://www.grimper.com/news-interview-joshua-fourteau-serie-video-les-coulisses-monde-competitions [2] https://fanatic-climbing.com/video-climbing-in-brione-joshua-fourteau/ |
| Jules Littlefair | 2 | |
| Julia Duffy | 2 | |
| Katrin Lehmann | 2 | |
| Katy Forrester | 2 | |
| Keiichiro Korenaga | 2 | |
| Kirsten Taylor | 2 | |
| Kitty Wallace | 2 | |
| Kokoro Fujii | 2 | |
| Koon Morris | 2 | |
| Kyle Hilton | 2 | |
| Kyle Howard | 2 | |
| Kyle Whitehand | 2 | |
| Lasse von Freier | 2 |