"My coaches always knew I was quick but it wasn't until I started track that I knew how quick I could be," he said. Through his school he was invited to compete against other athletes from the county and eventually qualified for a regional championships. From there, he joined Gloucester Athletics Club and linked up with his now coach Justin Smith. Since starting consistent training, Arminio's sprint times have improved markedly and he represented Great Britain for the first time earlier this summer. "That was the main motivation for me this season, I knew that was where I wanted to go, that was how much quicker I wanted to be."