Career
Cullen has represented the Republic of Ireland in the WDF Europe Cup Youth in 2004 and was runner-up in the Singles. He also played in the WDF World Cup in Perth and in 2012 he was in his national team for the WDF Europe Cup and the Six Nations Cup. Cullen qualified for the 2013 BDO International World Championship.
BDO International
2013: 2nd Round (lost to Paul Jennings 0-4).