Men's singles
2018 Sydney International
Champion	Daniil Medvedev
Runner-up	Alex de Minaur
Score	1–6, 6–4, 7–5
Draw	28 (4 Q / 3 WC )
Seeds	8

Gilles Müller was the defending champion, but lost in the quarterfinals to Benoît Paire.

Daniil Medvedev won his first ATP title, defeating Alex de Minaur in the final, 1–6, 6–4, 7–5.

Seeds

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

Draw

Finals

	Semifinals							Final
	Q	Daniil Medvedev	2	6	6
	4	Fabio Fognini	6	4	1
								Q	Daniil Medvedev	1	6	7
								SE	Alex de Minaur	6	4	5
	SE	Alex de Minaur	4	6	6
		Benoît Paire	6	1	1

Top half

	First round							Second round							Quarterfinals							Semifinals
								1	A Ramos Viñolas	3	5
		P Lorenzi	77	6					P Lorenzi	6	7
	WC	J Thompson	65	4												P Lorenzi	3	3
	SE	G Simon	1	4											Q	D Medvedev	6	6
		J Donaldson	6	6					J Donaldson	3	6	5
	Q	D Medvedev	6	6				Q	D Medvedev	6	4	7
	6	P Kohlschreiber	2	3																		Q	D Medvedev	2	6	6
																						4	F Fognini	6	4	1
								4	F Fognini	3	6	6
		A Dolgopolov	6	66	7				A Dolgopolov	6	3	4
		V Troicki	3	78	5										4	F Fognini	64	77	6
	WC	A Bolt	7	5	4										5	A Mannarino	77	64	2
	LL	R Berankis	5	7	6			LL	R Berankis	2	1
	Q	E Donskoy	7	5	4			5	A Mannarino	6	6
	5	A Mannarino	5	7	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	7	D Džumhur	6	6
		J-L Struff	1	4				7	D Džumhur	2	0r
	SE	A de Minaur	6	6				SE	A de Minaur	6	3
		F Verdasco	4	2											SE	A de Minaur	6	6
	Q	A Vukic	6	65	3											F López	4	4
		F López	4	77	6				F López	6	77
								3	D Schwartzman	3	61
																						SE	A de Minaur	4	6	6
	8	M Zverev	5	3																			B Paire	6	1	1
		L Mayer	7	6					L Mayer	2	6	1
		A Bedene	6	65	3				B Paire	6	3	6
		B Paire	1	77	6											B Paire	6	6
	Q	A Popyrin	64	0											2	G Müller	4	4
	WC	J Millman	77	6				WC	J Millman	65	4
								2	G Müller	77	6

Qualifying

Qualifying draw

First qualifier

	First round							Qualifying competition
	1	Daniil Medvedev	6	6
		Alexander Zhurbin	1	2
								1	Daniil Medvedev	6	6
								7	Václav Šafránek	2	4
	Alt	Fabrice Martin	1	2
	7	Václav Šafránek	6	6

Second qualifier

	First round							Qualifying competition
	2	Federico Delbonis	6	3	3
	WC	Alexei Popyrin	4	6	6
								WC	Alexei Popyrin	4	77	6
								5	Nicolas Mahut	6	64	4
	WC	Christopher O'Connell	6	4	4
	5	Nicolas Mahut	2	6	6

Third qualifier

	First round							Qualifying competition
	3	Evgeny Donskoy	6	6
	Alt	Nicholas Monroe	3	4
								3	Evgeny Donskoy	6
								8	Teymuraz Gabashvili	5r
		Vladimir Polyakov
	8	Teymuraz Gabashvili	w/o

Fourth qualifier

	First round							Qualifying competition
	4	Dušan Lajović	5	65
		Aleksandar Vukic	7	77
									Aleksandar Vukic	7	6
								6	Ričardas Berankis	5	2
		Matthew Barton	5	3
	6	Ričardas Berankis	7	6

Notes

References

• Main Draw
• Qualifying Draw