- Who
- Thomas G. Masterson
- What
- 62:257 year(s):day(s)
- Where
- Nepal ()
- When
The oldest person to climb Lhotse without supplementary oxygen (male) was Thomas G. Masterson (Canada), who climbed Lhotse on May 21st, 2007, at the age of 62 years and 257 days.
This record title was verified by the mountaineering expert Eberhard Jurgalski.
