Barty, Dellacqua in season-ending doubles

Ash Barty has received a further boost to her breakout season with news she and partner Casey Dellacqua have qualified for the season-ending doubles championships.

Fresh off another boost to her singles ranking - Barty moved to No.37 in the world on Monday, up from No.271 at the beginning of the year - the Queenslander was announced as a starter for the Singapore tournament.

It will be the debut performance for the pair, who have reached six finals this year, including the decider at Roland Garros.

They've won three titles and are currently ranked fourth in the race to Singapore.

"It really is a dream to compete at our first WTA Finals and we can't wait to play in front of the fans in Singapore," said Barty.