[1][2] Onome was (born on March 9, 2000) in Abeokuta, Ogun State, South western Nigeria.
[3] She transferred to Blair Academy in Blairstown, New Jersey, where she completed her high school education.
[4] Onome gave a TED Talk at her high school Blair Academy during her senior year there.
[4] Onome represented Nigeria in the FIBA Africa Under-16 Championship for Women where she averaged 5.7 points, 10.3 rebounds and 0.8 assists per game during the tournament.
[6][7] The Nigerian team won the silver medal after a 57–46 loss to Mali in the Final, thereby qualifying them to the World U-17 Championship for Women.