DUBLIN, Nov 8 (Reuters) - Flutter expects full-year earnings excluding the nascent U.S. market to be at the bottom of its previously forecast range, the world's largest online betting company said on Thursday, as it reported an 8% year-on-year rise in third-quarter revenues.

Flutter said in August it expected full-year adjusted ex-U.S. core profit to rise to 1.44-1.6 billion pounds ($1.77-1.97 billion). Since then, the company saw "very customer friendly" sports results in September and October, it said.

The Paddy Power, Betfair and Fanduel owner became the first online betting operator to turn a profit in the U.S in the first half and said on Thursday that, despite ongoing investment there, it expects full-year U.S. earnings of 140 million pounds versus its previous 90-190 million pound estimate.

The Dublin-based group also announced plans to delist from Euronext Dublin when it adds a New York listing in the first quarter of 2024. It had expressed hopes of staying in Dublin alongside its primary London listing but said on Thursday that keeping two listings would "minimise regulatory complexities".

It is the latest blow for the Irish bourse after building materials giant CRH left for New York in September and Smurfit Kappa prepares to follow suit as part of an $11 billion deal to buy U.S. rival WestRock.

($1 = 0.8139 pounds) (Reporting by Padraic Halpin Editing by Mark Potter)