Women's singles
2018 Sydney International
Champion	Angelique Kerber
Runner-up	Ashleigh Barty
Score	6–4, 6–4
Draw	30 (4 Q / 2 WC )
Seeds	8

Johanna Konta was the defending champion, but lost in the first round to Agnieszka Radwańska in a rematch of the previous year's final.

Angelique Kerber won the title, defeating Ashleigh Barty in the final, 6–4, 6–4. Kerber won the title despite being two match points down in the second set in her first-round match against Lucie Šafářová.

Seeds

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

Draw

Finals

	Semifinals							Final
		Daria Gavrilova	6	4	2
		Ashleigh Barty	3	6	6
									Ashleigh Barty	4	4
									Angelique Kerber	6	6
	Q	Camila Giorgi	2	3
		Angelique Kerber	6	6

Top half

	First round							Second round							Quarterfinals							Semifinals
								1/WC	G Muguruza	6	78
	Q	K Ahn	2	4					K Bertens	3	66
		K Bertens	6	6											1/WC	G Muguruza
		D Gavrilova	6	1	7											D Gavrilova	w/o
	WC	O Rogowska	4	6	5				D Gavrilova	6	6
	WC	S Stosur	4	7	6			WC	S Stosur	4	2
	LL	C Witthöft	6	5	3																		D Gavrilova	6	4	2
	3	J Ostapenko	63	1																			A Barty	3	6	6
		E Makarova	77	6					E Makarova	4	1
		D Kasatkina	5	6	4				B Strýcová	6	6
		B Strýcová	7	1	6											B Strýcová	3	2
		A Barty	6	6												A Barty	6	6
	Q	V Cepede Royg	3	4					A Barty	77	6
	WC	E Perez	6	4				WC	E Perez	64	1
	5	K Mladenovic	4	2r

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	6	S Stephens	3	0
	Q	C Giorgi	6	6				Q	C Giorgi	79	6
		M Lučić-Baroni	1	0r					P Kvitová	67	2
		P Kvitová	6	0											Q	C Giorgi	6	6
	Q	C Bellis	77	6												A Radwańska	1	2
		M Rybáriková	62	0				Q	C Bellis	64	0
		A Radwańska	6	7					A Radwańska	77	6
	4	J Konta	3	5																		Q	C Giorgi	2	3
	8	A Sevastova	3	1																			A Kerber	6	6
		D Cibulková	6	6					D Cibulková	6	6
		E Vesnina	6	6					E Vesnina	4	4
	LL	L Arruabarrena	2	2												D Cibulková	3	1
		L Šafářová	77	68	2											A Kerber	6	6
		A Kerber	63	710	6				A Kerber	5	6	6
								2	V Williams	7	3	1

Qualifying

Qualifying draw

First qualifier

	First round							Second round							Qualifying competition
	Alt	Abigail Spears	2	6	3
		Gabriela Dabrowski	6	3	6
									Gabriela Dabrowski	2	7	4
									Ekaterina Alexandrova	6	5	6
		Alicja Rosolska	0	0
		Ekaterina Alexandrova	6	6
																Ekaterina Alexandrova	6	3	1
															8	Catherine Bellis	3	6	6
		Kristína Kučová	6	6
		Yang Zhaoxuan	1	2
									Kristína Kučová	5	2
								8	Catherine Bellis	7	6
		Jennifer Brady	62	5
	8	Catherine Bellis	77	7

Second qualifier

	First round							Second round							Qualifying competition
	2	Anett Kontaveit	5	6	0r
		Shuko Aoyama	7	4	3
									Shuko Aoyama	2	65
									Camila Giorgi	6	77
		Camila Giorgi	7	6
	WC	Olivia Tjandramulia	5	2
																Camila Giorgi	6	6
															5	Carina Witthöft	4	1
	WC	Belinda Woolcock	5	7	6
		Xu Yifan	7	5	3
								WC	Belinda Woolcock	1	4
								5	Carina Witthöft	6	6
		Anastasia Rodionova	1	4
	5	Carina Witthöft	6	6

Third qualifier

	First round							Second round							Qualifying competition
	3	Carla Suárez Navarro	1	4
		Kristie Ahn	6	6
									Kristie Ahn	6	6
									Johanna Larsson	1	2
	WC	Tammi Patterson	3	62
		Johanna Larsson	6	77
																Kristie Ahn	6	6
															7	Monica Puig	4	1
		Duan Yingying	6	6
		Isabelle Wallace	2	2
									Duan Yingying	6	4	5
								7	Monica Puig	3	6	7
		Alizé Lim	2	2
	7	Monica Puig	6	6

Fourth qualifier

	First round							Second round							Qualifying competition
	4	Lauren Davis	4	4
		Lara Arruabarrena	6	6
									Lara Arruabarrena	6	6
								WC	Sara Tomic	2	3
	WC	Sara Tomic	2	7	6
		Ons Jabeur	6	5	4
																Lara Arruabarrena	4	1
																Verónica Cepede Royg	6	6
		Kateryna Bondarenko	64	78	0
		Christina McHale	77	66	0r
									Kateryna Bondarenko	6	3	64
									Verónica Cepede Royg	2	6	77
		Verónica Cepede Royg	6	3	6
	6	Maria Sakkari	4	6	3

References

• Main Draw
• Qualifying Draw