2018 Shimadzu All Japan Indoor Tennis Championships – Singles

Yasutaka Uchiyama was the defending champion but lost in the first round to Michał Przysiężny.

Singles
2018 Shimadzu All Japan Indoor Tennis Championships
Champion	John Millman
Runner-up	Jordan Thompson
Final score	7–5, 6–1

Main article: 2018 Shimadzu All Japan Indoor Tennis Championships

John Millman won the title after defeating Jordan Thompson 7–5, 6–1 in the final.

Seeds

1. John Millman (Champion)
2. Jordan Thompson (Final)
3. Go Soeda (Quarterfinals)
4. Stéphane Robert (First round)
5. Tatsuma Ito (Second round)
6. Kwon Soon-woo (Second round)
7. Hubert Hurkacz (Quarterfinals)
8. Yasutaka Uchiyama (First round)

Draw

Key

• Q = Qualifier
• WC = Wild Card
• LL = Lucky Loser
• Alt = Alternate
• SE = Special Exempt
• PR = Protected Ranking
• ITF = ITF entry
• JE = Junior Exempt
• w/o = Walkover
• r = Retired
• d = Defaulted

Finals

	Semifinals							Final
	1	John Millman	6	6
	Q	Blake Ellis	3	4
								1	John Millman	7	6
								2	Jordan Thompson	5	1
		Tim Pütz	6	5	4
	2	Jordan Thompson	3	7	6

Top half

	First Round							Second Round							Quarterfinals							Semifinals
	1	J Millman	6	6
		D Wu	4	4				1	J Millman	7^7	6^6	6
		B Klein	6	3	7^7				B Klein	6^3	7^8	3
		Ze Zhang	3	6	6^5										1	J Millman	4	6	6
		M Purcell	6	6											7	H Hurkacz	6	3	2
		M Banes	4	4					M Purcell	1	4
	Q	Yuya Kibi	5	3				7	H Hurkacz	6	6
	7	H Hurkacz	7	6																		1	J Millman	6	6
	3	G Soeda	7^8	0	7^7																	Q	B Ellis	3	4
	WC	Y Watanuki	6^6	6	6^2			3	G Soeda	6	6
		A Whittington	6	6					A Whittington	4	1
	WC	Sora Fukuda	3	3											3	G Soeda	3	7	5
		Y Takahashi	7^7	4	4										Q	B Ellis	6	5	7
	Q	B Ellis	6^4	6	6			Q	B Ellis	4	6	6
	WC	Yuta Shimizu	2	3				5	T Ito	6	3	4
	5	T Ito	6	6

Bottom half

	First Round							Second Round							Quarterfinals							Semifinals
	8	Y Uchiyama	6	4	6^3
	PR	M Przysiężny	4	6	7^7			PR	M Przysiężny	3	4
		T Kamke	6	6					T Kamke	6	6
		E Leshem	2	2												T Kamke	4	0
		C İlkel	3	2												T Pütz	6	6
		T Pütz	6	6					T Pütz	7^7	6
		P Gunneswaran	6	1	6				P Gunneswaran	6^5	2
	4	S Robert	3	6	4																		T Pütz	6	5	4
	6	S-w Kwon	6	7^7																		2	J Thompson	3	7	6
		M Donati	4	6^5				6	S-w Kwon	4	7^12	6^7
		K Uchida	6	3					K Uchida	6	6^10	7^9
	Q	T Garanganga	4	1^r												K Uchida	6^5	0
		K Kravchuk	6	7											2	J Thompson	7^7	6
	WC	Shintaro Imai	4	5					K Kravchuk	3	1
	Q	Z Li	6	6^4	4			2	J Thompson	6	6
	2	J Thompson	4	7^7	6

References

• Main Draw
• Qualifying Draw