Singles
2018 Gerry Weber Open
Champion	Borna Ćorić
Runner-up	Roger Federer
Score	7–6(8–6), 3–6, 6–2
Draw	32 (4 Q / 3 WC )
Seeds	8

Borna Ćorić defeated the defending champion Roger Federer in the final, 7–6^(8–6), 3–6, 6–2 to win the singles tennis title at the 2018 Halle Open. It was his first ATP 500 title. With Federer's loss, Rafael Nadal regained the world No. 1 ranking.

Seeds

Draw

Finals

	Semifinals							Finals
	1	Roger Federer	77	7
	Q	Denis Kudla	61	5
								1	Roger Federer	66	6	2
									Borna Ćorić	78	3	6
	4	Roberto Bautista Agut	3r
		Borna Ćorić	2

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	R Federer	6	6
		A Bedene	3	4				1	R Federer	6	3	79
		B Paire	7	77					B Paire	3	6	67
		S Johnson	5	65											1	R Federer	77	7
		M Jaziri	0	62											SE	M Ebden	62	5
	SE	M Ebden	6	77				SE	M Ebden	4	6	6
		M Fucsovics	6	3	1r			6	P Kohlschreiber	6	1	2
	6	P Kohlschreiber	4	6	2																	1	R Federer	77	7
	3	D Thiem	77	6																		Q	D Kudla	61	5
	Q	M Youzhny	65	2				3	D Thiem	2	5
	WC	M Marterer	4	7	3				Y Sugita	6	7
		Y Sugita	6	5	6											Y Sugita	2	5
	Q	L Lacko	4	4											Q	D Kudla	6	7
	Q	D Kudla	6	6				Q	D Kudla	6	6
		S Tsitsipas	6	77					S Tsitsipas	3	4
	5	L Pouille	2	63

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	7	K Nishikori	6	77
	Q	M Bachinger	3	63				7	K Nishikori	2	2
		M Zverev	65	3					K Khachanov	6	6
		K Khachanov	77	6												K Khachanov	3	77	3
		R Haase	4	7	6										4	R Bautista Agut	6	63	6
		J Sousa	6	5	4				R Haase	4	5
		J-L Struff	4	1				4	R Bautista Agut	6	7
	4	R Bautista Agut	6	6																		4	R Bautista Agut	3r
	8	R Gasquet	2	2																			B Ćorić	2
	WC	F Mayer	6	6				WC	F Mayer	2	4
		A Seppi	6	7					A Seppi	6	6
	LL	M Berrettini	3	5												A Seppi	5	3
	LL	N Basilashvili	6	77												B Ćorić	7	6
	WC	R Molleker	4	65				LL	N Basilashvili	4	2
		B Ćorić	6	6					B Ćorić	6	6
	2	A Zverev	1	4

Qualifying

Qualifying draw

First qualifier

	First round							Qualifying competition
	1	Gilles Simon	6	67	65
		Denis Istomin	4	79	77
									Denis Istomin	5	2
								WC	Matthias Bachinger	7	6
	WC	Matthias Bachinger	5	77	7
	6	Vasek Pospisil	7	63	5

Second qualifier

	First round							Qualifying competition
	2	Guido Pella	4	3
		Denis Kudla	6	6
									Denis Kudla	6	6
								5	Nikoloz Basilashvili	2	4
		Elias Ymer	4	3
	5	Nikoloz Basilashvili	6	6

Third qualifier

	First round							Qualifying competition
	3	Evgeny Donskoy	6	5	1
	WC	Yannick Maden	2	7	6
								WC	Yannick Maden	2	3
									Lukáš Lacko	6	6
		Lukáš Lacko	77	77
	7	Ivo Karlović	65	62

Fourth qualifier

	First round							Qualifying competition
	4	Matteo Berrettini	65	77	77
	WC	Dustin Brown	77	65	64
								4	Matteo Berrettini	3	67
								8	Mikhail Youzhny	6	79
		Ruben Bemelmans	64	2
	8	Mikhail Youzhny	77	6

References

• Main draw
• Qualifying draw