Yoshihito Nishioka (Jpn) versus Felix Auger-Aliassime (Can)
Naomi Osaka (Jpn) versus Liudmila Samsonova
Coco Gauff (US) versus Arantxa Rus (Ned)
Darwin Blanch (US) versus Rafael Nadal (Spa)
Iga Swiatek (Pol) versus Xiyu Wang (Chn)
Donna Vekic (Cro) versus Maria Sakkari (Gre)
Richard Gasquet (Fra) versus Lorenzo Sonego (Ita)
Daniel Galan (Col) versus Roberto Bautista Agut (Spa)
Anna Karolina Schmiedlova (Svk) versus Ons Jabeur (Tun)
Dominik Koepfer (Ger) versus Roberto Carballes Baena (Spa)
Tomas Machac (Cze) versus Emil Ruusuvuori (Fin)
Emiliana Arango (Col) versus Dayana Yastremska (Ukr)
Dusan Lajovic (Ser) versus Thiago Monteiro (Brz)
Beatriz Haddad Maia (Brz) versus Sara Errani (Ita)
Maria Carle (Arg) versus Veronika Kudermetova
Leylah Fernandez (Can) versus Anastasia Potapova
Victoria Azarenka versus Tatjana Maria (Ger)
Alexandra Eala (Phi) versus Sorana Cirstea (Rom)
Elise Mertens (Bel) versus Sloane Stephens (US)
Alejandro Tabilo (Chi) versus Flavio Cobolli (Ita)
Christopher O'Connell (Aus) versus Matteo Arnaldi (Ita)
Yannick Hanfmann (Ger) versus Jakub Mensik (Cze)
Aleksandar Kovacevic (US) versus Hamad Medjedovic (Ser)
Madison Keys (US) versus Irina-Camelia Begu (Rom)
Nadia Podoroska (Arg) versus Emma Navarro (US)
Ashlyn Krueger (US) & Erin Routliffe (NZ) versus Sofia Kenin (US) & Bethanie Mattek-Sands (US)
Giuliana Olmos (Mex) & Alexandra Panova versus Miyu Kato (Jpn) & Nadiia Kichenok (Ukr)
Jessica Bouzas Maneiro (Spa) & Victoria Jimenez Kasintseva (And) versus Barbora Krejcikova (Cze) & Laura Siegemund (Ger)
Sara Sorribes Tormo (Spa) versus Elina Svitolina (Ukr)
Jelena Ostapenko (Lat) versus Jessica Bouzas Maneiro (Spa)
Zhizhen Zhang (Chn) versus Miomir Kecmanovic (Ser)
Albert Ramos-Vinolas (Spa) versus Pavel Kotov
Alex Michelsen (US) versus Joao Fonseca (Brz)
Caroline Garcia (Fra) versus Xinyu Wang (Chn)
Magda Linette (Pol) versus Aryna Sabalenka
Caroline Dolehide (US) versus Anhelina Kalinina (Ukr)
Lucia Bronzetti (Ita) versus Elena Rybakina (Kaz)
Ekaterina Alexandrova versus Ashlyn Krueger (US)
Jaqueline Cristian (Rom) versus Barbora Krejcikova (Cze)
Sebastian Baez (Arg) versus Luca Van Assche (Fra)
Fabian Marozsan (Hun) versus Francisco Cerundolo (Arg)
Hubert Hurkacz (Pol) versus Jack Draper (GB)
Borna Coric (Cro) versus Alexander Zverev (Ger)
Andrey Rublev versus Facundo Bagnis (Arg)
Ugo Humbert (Fra) versus Botic van de Zandschulp (Ned)
Pedro Cachin (Arg) versus Sebastian Ofner (Aut)
Max Purcell (Aus) versus Marcos Giron (US)
Katie Boulter (GB) & Marketa Vondrousova (Cze) versus Eri Hozumi (Jpn) & Makoto Ninomiya (Jpn)
Xinyu Wang (Chn) & Saisai Zheng (Chn) versus Monica Niculescu (Rom) & Alycia Parks (US)