Men's singles day one results:

Dudi Sela (Isr) bt Marcel Granollers (Spa) 5-7 6-3 6-2 6-0
(17) Roger Federer (Swi) bt Jurgen Melzer (Aut) 7-5 3-6 6-2 6-2
(4) Stan Wawrinka (Swi) bt Martin Klizan (Svk) 4-6 6-4 7-5 4-6 6-4
Steve Darcis (Bel) bt Samuel Groth (Aus) 3-6 6-3 6-2 6-2,
Karen Khachanov (Rus) bt Adrian Mannarino (Fra) 6-4 3-6 7-6 (11-9) 6-3
Alexander Bublik (Rus) bt (16) Lucas Pouille (Fra) 6-0 3-6 6-3 6-4
Paolo Lorenzi (Ita) bt James Duckworth (Aus) 6-4 7-6 (7-4) 6-7 (4-7) 6-4
Daniel Evans (Gbr) bt Facundo Bagnis (Arg) 7-6 (10-8) 6-3 6-1
Andreas Seppi (Ita) bt Paul-Henri Mathieu (Fra) 6-4 7-6 (7-4) 6-7 (3-7) 7-5
Steve Johnson (USA) bt Federico Del Bonis (Arg) 6-3 6-4 6-4
(12) Jo-Wilfried Tsonga (Fra) bt Thiago Moura Monteiro (Bra) 6-1 6-3 6-7 (5-7) 6-2
(23) Jack Sock (USA) bt Pierre-Hugues Herbert (Fra) 6-4 7-6 (7-4) 6-3
(14) Nick Kyrgios (Aus) bt Gastao Elias (Por) 6-1 6-2 6-2
(1) Andy Murray (Gbr) bt Illya Marchenko (Ukr) 7-5 7-6 (7-5) 6-2
Diego Sebastian Schwartzman (Arg) bt (22) Pablo Cuevas (Uru) 6-3 6-3 6-0
Malek Jaziri (Tun) bt Go Soeda (Jpn) 6-3 6-4 6-3
(7) Marin Cilic (Cro) bt Jerzy Janowicz (Pol) 4-6 4-6 6-2 6-2 6-3
Dusan Lajovic (Ser) bt Stephane Robert (Fra) 6-3 6-3 6-3
(19) John Isner (USA) bt Konstantin Kravchuk (Rus) 6-3 6-4 6-7 (5-7) 6-1
Andrey Rublev (Rus) bt Yen-Hsun Lu (Tpe) 4-6 6-3 7-6 (7-0) 6-3
Mischa Zverev (Ger) bt Guillermo Garcia-Lopez (Spa) 6-3 7-6 (7-5) 6-4
(31) Sam Querrey (USA) bt Quentin Halys (Fra) 6-7 (10-12) 7-6 (7-4) 6-3 6-4
(29) Viktor Troicki (Ser) bt Damir Dzumhur (Bih) 6-4 6-4 2-6 2-6 6-3
Victor Estrella Burgos (Dom) bt Aljaz Bedene (Gbr) 7-6 (9-7) 7-5 0-6 6-3
(5) Kei Nishikori (Jpn) bt Andrey Kuznetsov (Rus) 5-7 6-1 6-4 6-7 (6-8) 6-2
(27) Bernard Tomic (Aus) bt Thomaz Bellucci (Bra) 6-2 6-1 6-4
Alex De Minaur (Aus) bt Gerald Melzer (Aut) 5-7 6-3 2-6 7-6 (7-2) 6-1
Ryan Harrison (USA) bt Nicolas Mahut (Fra) 6-3 6-4 6-2
(10) Tomas Berdych (Cze) bt Luca Vanni (Ita) 6-1 0-0 ret
Jeremy Chardy (Fra) bt Nicolas Almagro (Spa) 4-0 ret
(25) Gilles Simon (FRA) bt Michael Mmoh (USA) 6-1 6-3 6-3
(32) Philipp Kohlschreiber (GER) bt Nikoloz Basilashvili (GEO) 6-4 3-6 7-6(2) 6-4
Donald Young (USA) bt Thomas Fabbiano (ITA) 6-4 7-6(1) 6-4
(24) Alexander Zverev (GER) bt Robin Haase (NLD) 6-2 3-6 5-7 6-3 6-2
Rogerio Dutra Silva (BRA) bt Jared Donaldson (USA) 3-6 0-6 6-1 6-4 6-4

Women's singles results day one:

Shelby Rogers (USA) defeats Simona Halep (ROU) [4] 6-3 6-1
Venus Williams (USA) [13] defeats Kateryna Kozlova (UKR) 7-6(5) 7-5
Angelique Kerber (GER) [1] defeats Lesia Tsurenko (UKR) 6-2 5-7 6-2
Garbiñe Muguruza (ESP) [7] defeats Marina Erakovic (NZL) 7-5 6-4
Coco Vandeweghe (USA) defeats Roberta Vinci (ITA) [15] 6-1 7-6(3)
Eugenie Bouchard (CAN) defeats Louisa Chirico (USA) 6-0 6-4
Ashleigh Barty (AUS) defeats Annika Beck (GER) 6-4 7-5
Svetlana Kuznetsova (RUS) [8] defeats Mariana Duque-Mariño (COL) 6-0 6-1
Mona Barthel (GER) defeats Destanee Aiava (AUS) 6-3 7-6(4)
Carla Suárez Navarro (ESP) [10] defeats Jana Cepelova (SVK) 6-2 6-2
Shuai Zhang (CHN) [20] defeats Aliaksandra Sasnovich (BLR) 6-0 6-3
Elina Svitolina (UKR) [11] defeats Galina Voskoboeva (KAZ) 6-0 6-2
Anastasija Sevastova (LAT) [32] defeats Nao Hibino (JPN) 6-4 Ret.
Carina Witthoeft (GER) defeats Eri Hozumi (JPN) 7-5 7-6(6)
Ying-Ying Duan (CHN) defeats Rebecca Sramkova (SVK) 6-3 6-4
Stefanie Voegele (SUI) defeats Kurumi Nara (JPN) 2-6 6-2 6-3
Jelena Jankovic (SRB) defeats Laura Siegemund (GER) [26] 6-1 1-6 6-4
Pauline Parmentier (FRA) defeats Misaki Doi (JPN) 7-5 7-5
Samantha Crawford (USA) defeats Lauren Davis (USA) 4-6 6-3 6-0
Kristina Kucova (SVK) defeats Christina McHale (USA) 6-4 6-0
Alison Riske (USA) defeats Madison Brengle (USA) 7-5 6-3
Sorana Cirstea (ROU) defeats Irina Khromacheva (RUS) 6-2 6-1
Varvara Lepchenko (USA) defeats Kiki Bertens (NED) [19] 7-5 7-6(5)
Jaimee Fourlis (AUS) defeats Anna Tatishvili (USA) 6-4 6-3
Monica Puig (PUR) [29] defeats Patricia Maria Tig (ROU) 6-0 6-1
Anastasia Pavlyuchenkova (RUS) [24] defeats Evgeniya Rodina (RUS) 6-1 7-6(2)
Kristyna Pliskova (CZE) defeats Viktorija Golubic (SUI) 6-3 2-6 6-4
Julia Goerges (GER) defeats Katerina Siniakova (CZE) 3-6 6-3 6-4
Irina-Camelia Begu (ROU) [27] defeats Yaroslava Shvedova (KAZ) 5-7 6-3 6-4
Julia Boserup (USA) defeats Francesca Schiavone (ITA) 6-2 6-4
Natalia Vikhlyantseva (RUS) defeats Vania King (USA) 6-3 6-2
Shuai Peng (CHN) defeats Daria Kasatkina (RUS) [23] 6-0 7-6(5)