2025 ATP Hong Kong Tennis Open – Singles

Singles
2025 ATP Hong Kong Tennis Open
Champion	Alexandre Müller
Runner-up	Kei Nishikori
Score	2–6, 6–1, 6–3
Draw	28 (4 Q / 3 WC )
Seeds	8

Alexandre Müller defeated Kei Nishikori in the final, 2–6, 6–1, 6–3 to win the singles tennis title at the 2025 ATP Hong Kong Tennis Open.^[1] It was his first ATP Tour singles title. Müller saved two match points in his second-round match against Miomir Kecmanović and became the third player in the Open Era to win a tour-level title after losing the first set in all of his matches, after Arthur Ashe (in 1975 WCT Finals) and Alexander Bublik (in 2024 Montpellier).^[2][3]

It was Nishikori's first ATP Tour final since the 2019 Brisbane International.

Andrey Rublev was the defending champion,^[4] but lost in the second round to Fábián Marozsán.

The top four seeds will receive a bye into the second round.

	Semifinals							Final
		Shang Juncheng	3r
	WC	Kei Nishikori	4
								WC	Kei Nishikori	6	1	3
									Alexandre Müller	2	6	6
		Alexandre Müller	4	77	6
		Jaume Munar	6	65	4

	First round							Second round							Quarterfinals							Semifinals
								1	A Rublev	5	6	3
		R Safiullin	1	69					F Marozsán	7	3	6
		F Marozsán	6	711												F Marozsán	6	3	4
		J Shang	77	6												J Shang	1	6	6
	WC	C Wong	63	4					J Shang	6	6
	Q	F Passaro	4	4				7	P Martínez	3	1
	7	P Martínez	6	6																			J Shang	3r
																						WC	K Nishikori	4
								3	K Khachanov	6	3	5
		D Shapovalov	2	3				WC	K Nishikori	4	6	7
	WC	K Nishikori	6	6											WC	K Nishikori	6	3	6
		C Norrie	6	7												C Norrie	3	6	2
		L Tien	3	5					C Norrie	6	4	6
		L Sonego	77	6					L Sonego	2	6	1
	6	B Nakashima	64	3

	First round							Second round							Quarterfinals							Semifinals
	8	L Darderi	3	3
		M Kecmanović	6	6					M Kecmanović	7	66	610
		A Müller	2	6	6				A Müller	5	78	712
	Q	M-A Hüsler	6	4	3											A Müller	3	6	6
	WC	Z Bergs	6	6											4	A Fils	6	3	1
	Q	A Moro Cañas	4	4				WC	Z Bergs	67	4
								4	A Fils	79	6
																							A Müller	4	77	6
	5	N Borges	3	6	78																		J Munar	6	65	4
		Y Bu	6	3	66			5	N Borges	3	5
		J Munar	4	6	6				J Munar	6	7
		A Davidovich Fokina	6	3	3											J Munar	2	77	7
	Q	G Diallo	4	77	7										2	L Musetti	6	64	5
		R Carballés Baena	6	64	5			Q	G Diallo	4	3
								2	L Musetti	6	6

1. Marc-Andrea Hüsler
2. Gabriel Diallo
3. Alejandro Moro Cañas
4. Francesco Passaro

	First round							Qualifying competition
	1	Pavel Kotov	3	7	77
		Valentin Royer	6	5	65
								1	Pavel Kotov	67	4
									Marc-Andrea Hüsler	79	6
		Marc-Andrea Hüsler	7	6
	5	Laslo Djere	5	4

	First round							Qualifying competition
	2	Gabriel Diallo	77	6
	WC	Ng Ki-lung	62	2
								2	Gabriel Diallo	4	6	7
								8	Hugo Grenier	6	1	5
		Térence Atmane	6	3	4
	8	Hugo Grenier	3	6	6

	First round							Qualifying competition
	3	Daniel Altmaier	4	3
		Alejandro Moro Cañas	6	6
									Alejandro Moro Cañas	6	6
								WC	Cui Jie	2	3
	WC	Cui Jie	6	6
	6	Juan Manuel Cerúndolo	2	4

	First round							Qualifying competition
	4	Francesco Passaro	7	4	6
		Aziz Dougaz	5	6	3
								4	Francesco Passaro	4	6	6
									Denis Yevseyev	6	2	4
		Denis Yevseyev	6	2	6
	7	Cristian Garín	4	6	2

• Main draw
• Qualifying draw