AO - Men’s Singles 1R start

Day One - First round commenced at the 2023 Australian Open.

2023 Australian Open, on Hard, in Melbourne, Victoria, Australia, 16-29 January 2023.

Defending champion:

Rafael Nadal (6) who defeated Daniil Medvedev (2) 2-6 6-7(5) 6-4 6-4 7-5

19th seed Nick Kyrgios withdrew after the main draw was published due to a knee injury, and was replaced by lucky loser Denis Kudla 

First round results:

- Rafael Nadal (1) defeated Jack Draper 7-5 2-6 6-4 6-1

- Mackenzie McDonald defeated Brandon Nakashima 7-6(5) 7-6(1) 1-6 6-7(10) 6-4

- Qualifier Dalibor Svrcina defeated Jaume Munar 6-3 6-2 6-2

- Yoshihito Nishioka (31) defeated Mikael Ymer 6-4 6-2 7-5

- Karen Khachanov (18) defeated Bernabe Zapata Miralles 7-6(3) 6-2 6-0

- Wildcard Jason Kubler defeated Sebastian Baez 6-4 6-4 6-4

- Qualifier Shang Juncheng defeated Oscar Otte 6-2 6-4 6-7(2) 7-5

- Frances Tiafoe (16) defeated Daniel Altmaier 6-3 6-3 6-7(5) 7-6(6)

- Hubert Hurkacz (10) defeated Pedro Martínez 7-6(1) 6-2 6-2

- Lorenzo Sonego defeated Nuno Borges 7-6(4) 6-3 6-7(6) 6-1

- Taro Daniel defeated qualifier Ernesto Escobedo 7-5 6-2 3-6 6-3

- Denis Shapovalov (20) defeated Dusan Lajovic 6-4 4-6 6-4 6-1

- Sebastian Korda (29) defeated Cristian Garín 6-4 1-6 6-3 6-2

- Qualifier Yosuke Watanuki defeated Arthur Rinderknech 6-3 6-3 6-2

- Wildcard John Millman defeated Marc-Andrea Huesler 6-7(8) 7-5 6-7(2) 6-2 6-3

- Daniil Medvedev (7) defeated Marcos Giron 6-0 6-1 6-2

- Stefanos Tsitsipas (3) defeated Quentin Halys 6-3 6-4 7-6(6)

- Wildcard Rinky Hijikata defeated qualifier Yannick Hanfmann 4-6 4-6 6-3 7-6(5) 6-3

- Tallon Griekspoor defeated lucky loser Pavel Kotov 6-3 7-6(3) 6-3

- Botic van de Zandschulp (32) defeated Ilya Ivashka 6-3 3-6 7-5 6-3

- Lloyd Harris defeated Lorenzo Musetti (17) 6-4 6-1 6-7(0) 2-6 7-6(10-4)

- Marton Fucsovics defeated Federico Coria 4-6 7-5 2-6 7-6(6) 6-2

- Tomas Martin Etcheverry defeated Gregoire Barrere 3-6 6-3 6-4 6-4

- Jannik Sinner (15) defeated Kyle Edmund 6-4 6-0 6-2

- Cameron Norrie (11) defeated wildcard Luca Van Assche 7-6(3) 6-0 6-3

- Constant Lestienne defeated Thiago Monteiro 6-3 7-6(2) 6-3

- Wildcard Christopher Eubanks defeated Kwon Soon-woo 6-3 6-7(1) 6-3 4-6 6-4

- Jiri Lehecka defeated Borna Coric (21) 6-3 6-3 6-3

- Francisco Cerundolo (28) defeated Guido Pella 6-4 6-4 6-3

- Corentin Moutet defeated wildcard Wu Yibing 6-4 5-7 6-2 4-6 7-5

- Alex Molcan defeated Stan Wawrinka 6-7(3) 6-3 1-6 7-6(2) 6-4

- Felix Auger-Aliassime (6) defeated Vasek Pospisil 1-6 7-6(4) 7-6(3) 6-3