She competed in her first major senior tournaments in 2006: at the Melbourne Commonwealth Games she reached the semi-finals of the 100 m and won her second silver medal in the 4×100 m relay with the English team.

Five months later at her first European Athletics Championships, she achieved the same feat again, reaching the individual semi-finals and taking another silver medal with the relay team.

[4][5] On 28 August 2014, she helped set the British record in the Women's 4 × 100 m running the 3rd leg, alongside Asha Philip, Ashleigh Nelson and Desirèe Henry in the Diamond League in Zurich.

In October 2015, 10 months before winning her bronze medal in Rio 2016, Onuora had become severely unwell from malaria after visiting her late father's home village in Nigeria.

Few of her fellow GB athletes were aware that she had been unwell and could not walk due to illness, never mind train in preparation for the Rio Olympics selection trials.