Harris began his professional career in February 1983, suffering a defeat via a points decision to Dave Pratt.
In 1986, Harris won the Welsh flyweight title after defeating Kelvin Smart on points.
[2] Three further victories resulted in Harris receiving a title fight against Kevin Taylor for the vacant British featherweight championship.
Harris won the bout before losing the title in his first defence against Paul Hodkinson.
His son, Jay, is also a professional boxer and holds the Commonwealth, European and IBF Inter-continental flyweight titles.