National Youth Competition
O'Hanlon was signed by Parramatta after being selected for Queensland U/18's & Australian schoolboys. Dominating in 2010 & 2011, O'Hanlon in 2010 was named on the bench to play first grade against the New Zealand Warriors in Rd 17, but did not play.
He made his NRL debut in Rd 17 2011 against the Brisbane Broncos, coming off the bench to play centre for the injured Jacob Loko. O'Hanlon scored his first try in Rd 3 2012 against the North Queensland Cowboys.