Ashleigh Barty and Casey Dellacqua put Australia into the Fed Cup World Group play-offs with victory in the deciding doubles rubber over Ukraine in Canberra on Sunday.
Barty and Dellacqua eased past twin sisters Nadiia and Lyudmyla Kichenok 6-3, 6-4 after Nadiia had levelled the tie with a singles win over Daria Gavrilova.
Australia will now move into the World Group play-offs in April, putting them one win away from the Fed Cup`s top-eight nations for the first time since 2015, while Ukraine will face a World Group II play-off.
Barty was Australia`s leading light with her third victory of the weekend after beating both Lyudmyla Kichenok and Marta Kostyuk in her singles matches.
Australia`s number one singles player Barty had defeated Kostyuk 6-2, 6-3 to put her country on the cusp of qualification only for Gavrilova to lose the fourth singles rubber.
World No. 26 Gavrilova completed a dismal weekend when she went down for the second time despite winning the opening set against unranked Nadiia Kichenok 4-6, 6-2, 6-3.
Few had given the depleted Ukrainian team a chance when they arrived without world number three Elina Svitolina and their next five top-ranked singles players.