[2] He competed in the 2022 British Athletics Championships where he won the 100 metres in a wind-assisted time of 9.90 seconds.

Azu become the first Welsh 100m runner to break the 10-second barrier in wind-legal conditions clocking 9.97 at the True Athletes Classics in Leverkusen, Germany, on 25 May 2024.

[2] After winning the silver medal at the 2024 British Athletics Championships, Azu was subsequently named in the Great Britain team for the 2024 Summer Olympics.

[5] At the Games in Paris he was disqualified in his 100 metres heat for a false start.

[7] Azu won the gold medal in the 60 metres at the 2025 British Indoor Athletics Championships.