The son of Nigerian politician Uche Chukwumerije, Chika first drew attention in 2003 during the qualifiers for the 2003 All-Africa Games, where he eventually won a bronze medal in the Heavyweight Male category.

[2] Chika had his primary education at St. Jude's Private School in Festac Town, Lagos and received his undergraduate degree in mechanical engineering from the Federal University of Technology Owerri (FUTO) in Nigeria in 2005.

During the qualifications, he and partner Friday Dirisu fought hard against Lucky Ojemudia and Micheal Obiora to win the two spots in their weight categories.

[2][10][11][12] His father had paid for him, as well as fellow taekwondo practitioner Isa Adamu, to be trained in the United States and Europe and compete globally.

[17] He defeated Mali's Daba Modibo Keïta in the quarterfinals, but lost to Greece's Alexandros Nikolaidis, the eventual silver medal winner in the event.

[19] An injury cost Chukwumerije his title at the 2011 All-Africa Games in Maputo, Mozambique, where he settled for silver in the men's heavyweight category.

[21] At the London Games he participated in the men's +80kg division, but lost his first bout against Robelis Despaigne of Cuba, an eventual bronze medalist.

[1] He was also team captain at the 2014 Commonwealth taekwondo championships, where he won a silver medal after pulling out of the final against Mahama Cho of Great Britain due to injury.

[23] In October 2012 Nigeria hosted the first Chika Chukwumerije Sports Foundation international taekwondo championship to further the foundation's mission of producing world-class taekwondo practitioners from West Africa by combating "the lack of constant exposure to world class tournaments, training camps, equipment and training methodologies".