Kuru-Utumpala reached the summit of Mount Everest successfully at 5:03 a.m. on 21 May 2016, while Peries was not able to complete the feat, as his oxygen tank failed before the summit. Peries attained a height of , which is beyond Camp IV (the final camp on the southern ascent route, on the South Col). Kuru-Utumpala went on to become the first Sri Lankan as well as first and only Sri Lankan woman to have conquered the Everest. Kuru-Utumpala's summit also made Sri Lanka the fourth country in the world after Poland, Croatia and South Africa, from which a woman was the first person to reach the top of Mount Everest.