Singles
2018 Fukuoka International Women's Cup
Champion	Katie Boulter
Runner-up	Ksenia Lykina
Score	5–7, 6–4, 6–2

Magdaléna Rybáriková was the defending champion, but chose to compete in Madrid instead.

Katie Boulter won the title, defeating Ksenia Lykina in the final, 5–7, 6–4, 6–2.

Seeds

Draw

Finals

	Semifinals							Final
	5	Katie Boulter	6	6
		Momoko Kobori	1	4
								5	Katie Boulter	5	6	6
									Ksenia Lykina	7	4	2
		Ksenia Lykina	6	6
	2	Arina Rodionova	1	4

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	N Broady	6	77
		A Shimizu	1	64				1	N Broady	6	6
		A Tere-Apisah	6	6					A Tere-Apisah	2	2
		C Muramatsu	3	2											1	N Broady	4	6	2
		H Kaji	64	3											5	K Boulter	6	3	6
		T Patterson	77	6					T Patterson	3	1
	WC	Y Naito	6	4	4			5	K Boulter	6	6
	5	K Boulter	4	6	6																	5	K Boulter	6	6
	3	S-j Jang	6	6																			M Kobori	1	4
	LL	A Yoshitomi	1	2				3	S-j Jang	64	4
		M Kobori	6	2	6				M Kobori	77	6
	WC	N Sato	3	6	1											M Kobori	3	7	6
		I Jorović	6	77												I Jorović	6	5	2
		H Kuwata	2	63					I Jorović	77	6
		J Cako	1	4				7	J Namigata	62	4
	7	J Namigata	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	8	L Robson	5	4
		K Dunne	7	6					K Dunne	7	6
		A Sadiković	77	6					A Sadiković	5	2
		S Akita	65	2												K Dunne	2	1
	Q	O Tjandramulia	77	6												K Lykina	6	6
		M Inoue	65	4				Q	O Tjandramulia	4	1
		K Lykina	63	6	6				K Lykina	6	6
	4	G Taylor	77	1	2																		K Lykina	6	6
	LL	N Hanatani	2	4																		2	Ar Rodionova	1	4
	WC	M Eguchi	6	6				WC	M Eguchi	4	4
	Q	R Fujiwara	6	6				Q	R Fujiwara	6	6
	LL	E Hayashi	4	4											Q	R Fujiwara	6	2	3
	Q	T Moore	6	2	6										2	Ar Rodionova	4	6	6
		A Muhammad	2	6	3			Q	T Moore	6	0	1
	WC	M Yamaguchi	0	5				2	Ar Rodionova	3	6	6
	2	Ar Rodionova	6	7

References

• Main Draw