[5] An Olympian for Great Britain at the Rio Olympics, Aikines-Aryeetey won his first senior individual medal, a bronze, in the 100 metres at the 2014 European Athletics Championships.

At the same championships he earned his first senior title as part of the Great Britain team that won gold in the men's 4 x 100 metres relay.

[8][9] His first major tournament medal came at the 2004 Commonwealth Youth Games where he won the silver medal in the 100 m.[10] On 11 June 2006, aged 17, he competed in the 100 m at Gateshead in which Asafa Powell equalled the world record of 9.77 s. On 16 August 2006, he won the gold in the 100 m at the 2006 World Junior Championships in Athletics, held in Beijing, China, setting a season's best 10.37 s. He was advised not to run in 2007 due to minor fractures in the spine that could affect later development.

As part of the men's 4 × 100 m relay team with Simeon Williamson, Tyrone Edgar and Marlon Devonish, he took bronze in Berlin with a season's best of 38.02 seconds.

[15] Aikines-Aryeetey's character on the show has formed to be one of the most beloved amongst the fans, and his "explosive energy" and the notorious 41 in (1.0 m) vertical jump[16] are well known amongst the Gladiators community.

[17] Aikines-Aryeetey also appeared as a contestant on Celebrity MasterChef in September 2024,[18] and participated in the Christmas special of Strictly Come Dancing in December 2024, alongside professional dancer Nancy Xu.