Olga Kotelko, Canadian runner and softball player (b. 1919)
Olga Kotelko (2 March 1919 – 24 June 2014) was a Canadian track and field athlete. She held over 30 world records and won over 750 gold medals in her age category for the Masters competition, age 90–95, and was considered "one of the world's greatest athletes" as a result. She held every track and field world record she attempted for her age group.