2018 Toray Pan Pacific Open – Singles

Caroline Wozniacki was the two-time defending champion, but lost in the second round to Camila Giorgi.

Singles
2018 Toray Pan Pacific Open
Champion	Karolína Plíšková
Runner-up	Naomi Osaka
Final score	6–4, 6–4

Karolína Plíšková won the title, defeating Naomi Osaka in the final, 6–4, 6–4. Plíšková won the title after saving two match points Alison Riske had against her in the quarterfinals.

Seeds

The top four seeds received a bye into the second round.

1. Caroline Wozniacki (Second round)
2. Caroline Garcia (Quarterfinals)
3. Naomi Osaka (Final)
4. Karolína Plíšková (Champion)
5. Sloane Stephens (First round)
6. Garbiñe Muguruza (Second round)
7. Ashleigh Barty (Second round)
8. Barbora Strýcová (Quarterfinals)

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
		Camila Giorgi	2	3
	3	Naomi Osaka	6	6
								3	Naomi Osaka	4	4
								4	Karolína Plíšková	6	6
	4	Karolína Plíšková	6	4	6
		Donna Vekić	2	6	3

Top half

	First Round							Second Round							Quarterfinals							Semifinals
								1/WC	C Wozniacki	2	6	4
	Q	M Doi	2	1					C Giorgi	6	2	6
		C Giorgi	6	6												C Giorgi	5
	WC	V Azarenka	6	7											WC	V Azarenka	3^r
	WC	K Nara	4	5				WC	V Azarenka	6	6
		C Vandeweghe	6	3	5			7	A Barty	4	2
	7	A Barty	4	6	7																		C Giorgi	2	3
																						3	N Osaka	6	6
								3	N Osaka	6	6
	Q	N Hibino	1	7	3				D Cibulková	2	1
		D Cibulková	6	5	6										3	N Osaka	6	6
		K Mladenovic	3	6^5											8	B Strýcová	3	4
		A Kontaveit	6	7^7					A Kontaveit	6^5	6	5
	Q	Z Diyas	4	4				8	B Strýcová	7^7	3	7
	8	B Strýcová	6	6

Bottom half

	First Round							Second Round							Quarterfinals							Semifinals
	6	G Muguruza	6	6
		B Bencic	2	4				6	G Muguruza	1	2
	Q	E Bouchard	4	4				Q	A Riske	6	6
	Q	A Riske	6	6											Q	A Riske	1	7^7	6^4
	WC	Kr Plíšková	6^2	6	6^8										4	Ka Plíšková	6	6^5	7^7
		D Gavrilova	7^7	3	7^10				D Gavrilova	6	4	4
								4	Ka Plíšková	4	6	6
																						4	Ka Plíšková	6	4	6
	5	S Stephens	4	4																			D Vekić	2	6	3
		D Vekić	6	6					D Vekić	6	7
	Q	G Dabrowski	2	0					J Konta	3	5
		J Konta	6	6												D Vekić	6	6
		A Pavlyuchenkova	6	6											2	C Garcia	3	4
		A Sasnovich	3	4					A Pavlyuchenkova	4	6	5
								2	C Garcia	6	2	7

Qualifying

Seeds

1. Zarina Diyas (Qualified)
2. Magda Linette (Qualifying competition)
3. Alison Riske (Qualified)
4. Eugenie Bouchard (Qualified)
5. Duan Yingying (Withdrew)
6. Jana Fett (First round)
7. Nao Hibino (Qualified)
8. Antonia Lottner (Qualifying competition)
9. Misaki Doi (Qualified)
10. Miyu Kato (Withdrew)
11. Ayano Shimizu (Qualifying competition)
12. Anna Zaja (First round)

Qualifiers

1. Zarina Diyas
2. Nao Hibino
3. Alison Riske
4. Eugenie Bouchard
5. Gabriela Dabrowski
6. Misaki Doi

First qualifier

	First Round							Qualifying Competition
	1	Zarina Diyas	6	6
		Miyabi Inoue	4	3
								1	Zarina Diyas	6	6
									Risa Ozaki	1	0
		Risa Ozaki	6	7^7
	12	Anna Zaja	2	6^2

Second qualifier

	First Round							Qualifying Competition
	2	Magda Linette	7^10	6
		Momoko Kobori	6^8	3
								2	Magda Linette	2	7^7	3
								7	Nao Hibino	6	6^3	6
		Erika Sema	0	0
	7	Nao Hibino	6	6

Third qualifier

	First Round							Qualifying Competition
	3	Alison Riske	6	6
		Valeria Savinykh	4	4
								3	Alison Riske	6	6
								11	Ayano Shimizu	3	2
	WC	Mai Hontama	1	4
	11	Ayano Shimizu	6	6

Fourth qualifier

	First Round							Qualifying Competition
	4	Eugenie Bouchard	6	6
	WC	Moyuka Uchijima	1	1
								4	Eugenie Bouchard	6	2	7
								WC	Chihiro Muramatsu	1	6	5
	WC	Chihiro Muramatsu	6	6
	Alt	Misa Eguchi	2	0

Fifth qualifier

	First Round							Qualifying Competition
	Alt	Gabriela Dabrowski	6	6
		Miharu Imanishi	3	2
								Alt	Gabriela Dabrowski	6	6
								8	Antonia Lottner	3	2
		Mari Osaka	3	6	3
	8	Antonia Lottner	6	4	6

Sixth qualifier

	First Round							Qualifying Competition
	6	Jana Fett	3	2
		Danielle Lao	6	6
									Danielle Lao	5	5
								9	Misaki Doi	7	7
	WC	Haruka Kaji	0	2
	9	Misaki Doi	6	6

References

• Main Draw
• Qualifying Draw