He was educated at Portadown College and has also represented Ireland at schools, U19, U21, U25 and A levels.
He was immediately pulled out of the Ireland World Cup side and returned home.
On 25 February 2008, Best announced his retirement from rugby due to an irregular heartbeat.
He stated he would no longer be able to sustain the high level of training that playing professional rugby required.
This biographical article relating to Irish Rugby Union is a stub.