Hellmut Seitzl was the oldest Everest ascender from Germany since 1994 with 56 years and 333 days. In 2009 Alois Bogenschütz replaced him with 63 years and 339 days. Also the oldest British ascender of Everest was noted in 2009, when Ranulph Fiennes summited with the age of 65 years and 75 days. He replaced Hamish Fulton, who summited just two days earlier, aged 62 years and 302 days. Nikolai Cherni from Russia replaced his own record from 2005, when he already was the oldest Russian on top of Everest with 66 years and 176 days, on his ascent in 2009 he was 70 years and 167 days old.

Three new records on 8000er mountains were achieved in 2009. British climber Keith Kerr set a new record on Kangchenjunga with 57 years and six days, Taisuke Furukawa from Japan set a new record on Manaslu with 70 years and 246 days and finally Spanish climber Carlos Soria summited Gasherbrum I, aged 70 years and 179 days. Because the ascent from Boris Korshunov from Russia is disputed (he was 72 years and 32 days old then), possibly the oldest on Cho Oyu might be American climber Clifton Maloney (71 years, 344 days), who died sadly on descent of the mountain.