Career
Rosemary Chukwuma gained her first international experience at the 2018 Commonwealth Games in Gold Coast, Australia where she won a bronze medal behind the teams from England and Jamaica with the Nigerian 4 × 100 m relay team in 42.75 seconds. In the summer she won a gold medal with the 4 × 100 m relay team at the 2018 African Championships in Asaba but did not start over the 200 m event. Earlier, she won double gold at the 2018 African Youth Games in Algiers over 100 m and 200 m and thus qualified for the Summer Youth Olympics in Buenos Aires, where she won the 100 m gold medal.
In 2019, she won triple gold at the Junior African Championships in Abidjan with 11.62 seconds and 23.81 seconds finishes over 100 m and 200 m respectively, and in 45.56 seconds with the Nigerian 4 × 100 m relay team. In early May, she ran in the 4 × 100 m relay for Nigeria at the IAAF World Relays in Yokohama with 45.07 seconds in the first round. Then she took part in the African Games for the first time in Rabat and reached the final of the 200 m, where she did not start. She also won gold with the Nigerian relay team in 44.16 seconds.
Chukwuma competed for the Texas Tech Red Raiders track and field team in the NCAA.
Competing at the 2026 African Championships in Accra, Ghana, she claimed silver medals in both the 100 and 200 metres. In the women's relay, she also helped Team Nigeria secure their fourth consecutive gold medal. Chukwuma received a bye to next stage of 100 meteres at the 2026 Commonwealth Games in Glasgow but suffered an injury in the semi-final. She struggled to finish the race, clocking 11.82 seconds to place eighth.
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