who become the oldest atp world number one
List of ATP number 1 ranked singles tennis players Lleyton Hewitt is both the youngest world No. 1 (20 years, 268 days) and youngest year-end No. 1,[10][11] while Rafael Nadal is the oldest year-end No. 1 (31 years, 211 days). Roger Federer is the oldest No. 1 (36 years, 314 days).[12]
Oldest people Since the death of 117-year-old Nabi Tajima of Japan on 21 April 2018, 117-year-old Chiyo Miyako of Japan, born 2 May 1901, is the oldest living person in the world whose age has been documented. Since the death of 113-year-old Francisco Núñez Olivera of Spain on 29 January 2018, 112-year-old Masazō Nonaka of Japan, born 25 July 1905, is the world's oldest living man.