Hayles represented England in the points race and team pursuit at the 1998 Commonwealth Games.

[citation needed] In March 2008, he was withdrawn from the Great Britain team at the world track championships in Manchester,[5] and was suspended for 14 days after a blood test showed a haematocrit 0.3% above the limit.

[citation needed] He won the 2008 national road championships but was not selected to represent Great Britain in the Beijing Olympics.

As a child, Hayles lived in Cowplain, Hampshire and attended Padnell Junior School.

[8] Hayles lives in Hayfield, Derbyshire, with his wife, former Olympic swimmer Vicky Horner, and their daughter, born 23 January 2006.