Roland Garros champion Barty into US Open 3rd round

New York - Reigning French Open champion Ashleigh Barty progressed to round three of the US Open on Wednesday with a 6-2, 7-6 (7/2) victory over 73rd-ranked American Lauren Davis.

Australian second seed Barty clinched a WTA Tour-leading 44th win of the season to book a date with either Greek 30th seed Maria Sakkari or China's Peng Shuai, whose match was one of 22 singles ties postponed by rain.

US Open results on Wednesday (x denotes seeding):

Men

Second round

Novak Djokovic (SRB x1) bt Juan Ignacio Londero (ARG) 6-4, 7-6 (7/3), 6-1

Dominik Koepfer (GER) bt Reilly Opelka (USA) 6-4, 6-4, 7-6 (7/2)

Roger Federer (SUI x3) bt Damir Dzumhur (BIH) 3-6, 6-2, 6-3, 6-4

Grigor Dimitrov (BUL) bt Borna Coric (CRO x12) walkover

Kei Nishikori (JPN x7) bt Bradley Klahn (USA) 6-2, 4-6, 6-3, 7-5

Women

Second round

Elina Svitolina (UKR x5) bt Venus Williams (USA) 6-4, 6-4

Madison Keys (USA x10) bt Zhu Lin (CHN) 6-4, 6-1

Karolina Pliskova (CZE x3) bt Mariam Bolkvadze (GEO) 6-1, 6-4

Serena Williams (USA x8) bt Caty McNally (USA) 5-7, 6-3, 6-1

Ashleigh Barty (AUS x2) bt Lauren Davis (USA) 6-2, 7-6 (7/2)

Note: 22 matches postponed until Thursday due to rain