Australian Open results

MELBOURNE — Results from the Australian Open at Melbourne Park (seedings in parentheses):

WEDNESDAY

MEN’S SINGLES QUARTERFINALS

Hyeon Chung, Republic of Korea, def. Tennys Sandgren, United States, 6-4, 7-6 (5), 6-3.

Roger Federer (2), Switzerland, def. Tomas Berdych (19), Czech Republic, 7-6 (1), 6-3, 6-4.

WOMEN’S SINGLES QUARTERFINALS

Simona Halep (1), Romania, def. Karolina Pliskova (6), Czech Republic, 6-3, 6-2.

Angelique Kerber (21), Germany, def. Madison Keys (17), United States, 6-1, 6-2.

MEN’S DOUBLES QUARTERFINALS

Oliver Marach, Austria and Mate Pavic (7), Croatia, def. Dominic Inglot, Britain and Marcus Daniell, New Zealand, 6-4, 6-7 (10), 7-6 (5).

Robert Farah, Colombia and Juan Sebastian Cabal (11), Colombia, def. Lleyton Hewitt, Australia and Sam Groth, Australia, 6-4, 7-5.

WOMEN’S DOUBLES SEMIFINALS

Kristina Mladenovic, France and Timea Babos (5), Hungary, def. Shuai Peng, China and Su-Wei Hsieh (8), Taiwan, 6-4, 6-2.

Elena Vesnina, Russia and Ekaterina Makarova, Russia, def. Monica Niculescu, Romania and Irina Begu (10), Romania, 6-4, 6-3.

TODAY

MIXED DOUBLES QUARTERFINAL

Marcelo Demoliner, Brazil and Maria Jose Martinez Sanchez, Spain, def. Storm Sanders, Australia and Marc Polmans, Australia, 7-5, 6-4.

JUNIORS MEN’S SINGLES QUARTERFINAL

Marko Miladinovic (2), Serbia, def. Hugo Gaston (5), France, 4-6, 6-3, 7-5.

JUNIORS WOMEN’S SINGLES QUARTERFINAL

Elisabetta Cocciaretto, Italy, def. Daniela Vismane (13), Latvia, 6-3, 6-4.

En Shuo Liang (2), Taiwan, def. Xiyu Wang (9), China, 6-4, 4-6, 6-3.