Mark is a member of Dromore RFC having previously played for Dublin University and NIFC. He has been a referee for 33 years and was on the national referee panel from 1994 to 2004.
He is a Queen’s Counsel (NI) since 1996 and a Senior Counsel (Republic of Ireland) since 2002. He has served on the Ulster Branch committee and is the Referees representative to the Branch.
He was elected to the IRFU committee in July 2019.