 They currently compete in National League 1, the third division of the Rugby Football Union domestic league competition pyramid, having achieved promotion on 3 May 2014, after defeating Ampthill in the 2013–14 play-off.The club's former name, Darlington Grammar School Old Boys, was changed when they moved to Yiewsley Drive, which was located in Mowden.They relocated to The Darlington Arena, a 25,000 all-seater stadium in Darlington, purchasing the previously-vacated ground for £2 million; Yiewsley Drive had previously been sold to a housing estate company, and the Arena was previously owned by Darlington Football Club.