A wing or fullback, he played for the Northampton Saints, Bedford Blues, Newport Gwent Dragons, and most recently Ealing Trailfinders.
[1] Harries was part of the Northampton Saints Senior Academy, and made his first competitive appearance against Saracens on 18 November 2006.
[8] In May 2010 he was added to the Wales national rugby union team standby list for the summer matches and subsequently called into the full squad due to injury to Shane Williams.
He left Newport Gwent Dragons at the end of the 2013–14 season and was selected in the Wales Sevens squad for the 2014 Commonwealth Games, as they fell just short of a semi finals appearance.
[15] After finishing the Commonwealth Games, Harries joined Championship team Ealing Trailfinders, where he spent five seasons.