ATP - Miami 1R start

First round commenced in Miami.

2025 Miami Open presented by Itaú, an ATP Masters 1000 tournament, on Hard Outdoor, Miami, Florida, USA, 18-30 March 2025.

2024 champion (not defending):

Jannik Sinner (2) who defeated Grigor Dimitrov (11) 6-3 6-1

Nicolas Jarry withdrew after the main draw was published due to a toe injury, and was replaced by lucky loser Camilo Ugo Carabelli 

Tallon Griekspoor withdrew after the main draw was published due to an ankle injury, and was replaced by lucky loser Gabriel Diallo.

Kei Nishikori withdrew after the main draw was published due to a back injury, and was replaced by lucky loser Hugo Gaston.

21st seed Hubert Hurkacz withdrew after the main draw was published due to a back injury, and was replaced by lucky loser Adam Walton.

Walton received the first round bye originally given to Hurkacz.

First round results:

- Jaume Munar defeated Arthur Rinderknech 6-3 7-6(5)

- Gaël Monfils defeated Fabian Marozsan 6-3 3-6 6-4

- Wildcard Eliot Spizzirri defeated qualifier Billy Harris 7-6(2) 3-6 6-2

- Qualifier Tseng Chun-hsin defeated Mattia Bellucci 7-6(5) 6-2

- Quentin Halys defeated Thiago Seyboth Wild 6-3 6-4

- Qualifier Tristan Schoolkate defeated qualifier Ethan Quinn 6-0 6-2

- Lucky loser Camilo Ugo Carabelli defeated qualifier Brandon Holt 2-6 7-6(5) 6-4

- Rinky Hijikata defeated Hamad Medjedovic 7-5 3-6 7-5

- Miomir Kecmanovic defeated Aleksandar Kovacevic 6-4 6-4

- Corentin Moutet defeated qualifier Alexander Blockx 7-6(5) 6-4

- Alexandre Müller defeated qualifier Rei Sakamoto 6-4 6-4

- Alexander Bublik defeated Sebastian Baez 6-3 6-4

- Wildcard Federico Cina defeated qualifier Francisco Comesana 7-6(4) 7-6(2)

- Nick Kyrgios defeated qualifier Mackenzie McDonald 3-6 6-3 6-4

- Roberto Carballes Baena defeated qualifier Christopher O’Connell 6-3 3-6 7-6(5)

- David Goffin defeated Aleksandar Vukic 2-6 6-4 6-2