the arena was developed to host equestrian events, primarily the annual dublin horse show, which was first held there in 1881. the site had been acquired in 1879 by the rds. the primary tenants of the rds arena are leinster rugby who compete in the pro14 and champions cup. the arena has also hosted soccer and wrestling events and concerts. it has a capacity of 18,500, 16,500 of which is seated.