Tolong jelaskan mengenai Nomor dari Australia Terbuka 2019

Novak Djokovic def.  Rafael Nadal, 6–3, 6–2, 6–3

Naomi Osaka def.  Petra Kvitová, 7–6(7–2), 5–7, 6–4

Pierre-Hugues Herbert /  Nicolas Mahut def.  Henri Kontinen /  John Peers, 6–4, 7–6(7–1)

Samantha Stosur /  Zhang Shuai def.  Tímea Babos /  Kristina Mladenovic, 6–3, 6–4

Barbora Krejčíková /  Rajeev Ram def.  Astra Sharma /  John-Patrick Smith, 7–6(7–3), 6–1

Lorenzo Musetti def.  Emilio Nava, 4–6, 6–2, 7–6(14–12)

Clara Tauson def.  Leylah Fernandez, 6–4, 6–3

Jonáš Forejtek /  Dalibor Svrčina def.  Cannon Kingsley /  Emilio Nava, 7–6(7–5), 6–4

Natsumi Kawaguchi /  Adrienn Nagy def.  Chloe Beck /  Emma Navarro, 6–4, 6–4

Mansour Bahrami /  Mark Philippoussis def.  Jonas Björkman /  Thomas Johansson, 4–3(5–3), 4–2

Gustavo Fernández def.  Stefan Olsson, 7–5, 6–3

Diede de Groot def.  Yui Kamiji, 6–0, 6–2

Dylan Alcott def.  David Wagner, 6–4, 7–6(7–2)

Joachim Gérard /  Stefan Olsson def.  Stéphane Houdet /  Ben Weekes, 6–3, 6–2

Diede de Groot /  Aniek van Koot def.  Marjolein Buis /  Sabine Ellerbrock, 5–7, 7–6(7–4), [10–8]

Dylan Alcott /  Heath Davidson def.  Andy Lapthorne /  David Wagner, 6–3, 6–7(6–8), [12–10]