Fastest ascent of the top three highest mountains without supplementary oxygen – male
- Who
- Nirmal "Nims" Purja
- What
- 75 days 21 hours 45 minutes year(s):day(s)
- Where
- Pakistan
- When
- 22 July 2022
The fastest time to climb the three highest mountains without bottled oxygen is 75 days 21 hours 45 minutes by Nirmal "Nims" Purja (Nepal/UK), who reached the top of Kangchenjunga at 10:50 a.m. on 7 May 2022, Everest at 9 a.m. on 15 May 2022 and K2 at 8.35 a.m. on 22 July 2022.
Nims' climb of the top three mountains is the fastest in absolute terms, with or without the use of bottled oxygen.