Ash Barty and Casey Dellacqua will face the biggest test of their US Open campaign when they battle No.2 seeds Ekaterina Makarova and Elena Vesnina on Wednesday.

Australia's success on the doubles court has continued at the US Open with Ash Barty, Casey Dellacqua and John Peers all moving into the quarterfinals.

Despite a first-round loss at the US Open on Tuesday, Casey Dellacqua remains motivated ahead of further competitive outings at Flushing Meadows on the doubles court.

UPDATE: Casey Dellacqua and Nick Kyrgios have boosted Australia's presence in the US Open main draws after winning their final round qualifying matches on Friday.

UPDATE 12:55pm: Nick Kyrgios, Casey Dellacqua, Olivia Rogowska and Anastasia Rodionova have all progressed to the final round of US Open qualifying.

UPDATE: Casey Dellacqua, Olivia Rogowska and Matt Reid have won through to the second round of US Open qualifying on Tuesday at Flushing Meadows.

In an interview ahead of the US Open, Ash Barty has noted Casey Dellacqua's role this season in developing and improving her career.

Ash Barty and Casey Dellacqua thrilled with their run to the 2013 Wimbledon final - here's a look back in pictures at their path to the title match.

Ash Barty and Casey Dellacqua's magical run at Wimbledon has come to an end after they fell in the ladies' doubles final to Su-Wei Hsieh and Shuai Peng.

Ash Barty and Casey Dellacqua will contest the women's doubles final while Nick Kyrgios and Thanasi Kokkinakis's run continues.