2025 Japan Open Tennis Championships – Singles

Singles
2025 Japan Open Tennis Championships
Champion	Carlos Alcaraz
Runner-up	Taylor Fritz
Score	6–4, 6–4
Draw	32 (4Q / 3WC)
Seeds	8

Carlos Alcaraz defeated Taylor Fritz in the final, 6–4, 6–4 to win the singles tennis title at the 2025 Japan Open.^[1] It was his 24th career ATP Tour title.^[2]

Arthur Fils was the reigning champion,^[3][4] but did not participate this year due to a back injury.

Key

	Semifinals							Final
	1	Carlos Alcaraz	3	6	6
	4	Casper Ruud	6	3	4
								1	Carlos Alcaraz	6	6
								2	Taylor Fritz	4	4
	PR	Jenson Brooksby	4	3
	2	Taylor Fritz	6	6

	First round							Second round							Quarterfinals							Semifinals
	1	C Alcaraz	6	6
		S Báez	4	2				1	C Alcaraz	6	6
		Z Bergs	1	77	77				Z Bergs	4	3
		A Tabilo	6	62	64										1	C Alcaraz	6	6
		J Thompson	78	64	2											B Nakashima	2	4
		B Nakashima	66	77	6				B Nakashima	7	6
	Q	M Fucsovics	3	6	7			Q	M Fucsovics	5	3
	8	F Tiafoe	6	1	5																	1	C Alcaraz	3	6	6
	4	C Ruud	4	6	6																	4	C Ruud	6	3	4
	WC	S Mochizuki	6	1	1			4	C Ruud	77	6
		J Munar	4	2					M Berrettini	64	2
		M Berrettini	6	6											4	C Ruud	6	6
		D Džumhur	4	6	3										Q	A Vukic	3	2
	Q	A Vukic	6	3	6			Q	A Vukic	6	6
		D Altmaier	7	6					D Altmaier	4	2
	7	D Shapovalov	5	3

	First round							Second round							Quarterfinals							Semifinals
	6	U Humbert	64	3
	PR	J Brooksby	77	6				PR	J Brooksby	79	6
	WC	Y Nishioka	69	3					L Darderi	67	1
		L Darderi	711	6											PR	J Brooksby	6	6
		A Michelsen	5	2											3	H Rune	3	3
	Q	E Quinn	7	6				Q	E Quinn	4	2
		H Medjedovic	67	1				3	H Rune	6	6
	3	H Rune	79	6																		PR	J Brooksby	4	3
	5	T Macháč	3	64																		2	T Fritz	6	6
	Q	S Shimabukuro	6	77				Q	S Shimabukuro	1	4
		M Giron	6	3	64				S Korda	6	6
		S Korda	4	6	77											S Korda	3	77	3
	WC	Y Watanuki	6	4	1										2	T Fritz	6	65	6
		N Borges	2	6	6				N Borges	5	64
		G Diallo	6	3	63			2	T Fritz	7	77
	2	T Fritz	4	6	77

	First round							Qualifying competition
	1	Márton Fucsovics	6	6
		Filip Misolic	3	1
								1	Márton Fucsovics	7	6
								5	Matteo Arnaldi	5	2
		Luca Nardi	0	77	3
	5	Matteo Arnaldi	6	64	6

	First round							Qualifying competition
	2	Mattia Bellucci	77	5	7
	WC	Yasutaka Uchiyama	65	7	5
								2	Mattia Bellucci	6	4	5
								7	Ethan Quinn	4	6	7
	Alt	Yuta Shimizu	64	4
	7	Ethan Quinn	77	6

	First round							Qualifying competition
	3	Aleksandar Kovacevic	4	77	2
		Aleksandar Vukic	6	64	6
									Aleksandar Vukic	6	77
								WC	Rei Sakamoto	4	65
	WC	Rei Sakamoto	6	6
	6	Adam Walton	2	4

	First round							Qualifying competition
	4	Juan Manuel Cerúndolo	6	6
	Alt	Rio Noguchi	3	2
								4	Juan Manuel Cerúndolo	4	3
								WC	Sho Shimabukuro	6	6
	WC	Sho Shimabukuro	6	6
	8	Mariano Navone	2	3

• Main draw
• Qualifying draw