2018 German Open – Singles

Leonardo Mayer was the defending champion, but lost in the final to Nikoloz Basilashvili, 4–6, 6–0, 5–7. This was Basilashvili's first ATP World Tour title, as well as the first ATP title won by a Georgian player.

Singles
2018 German Open
Champion	Nikoloz Basilashvili
Runner-up	Leonardo Mayer
Final score	6–4, 0–6, 7–5
Draw	32
Seeds	8

Main article: 2018 German Open

Seeds

1. Dominic Thiem (Quarterfinals)
2. Diego Schwartzman (Quarterfinals)
3. Pablo Carreño Busta (Quarterfinals)
4. Damir Džumhur (First round)
5. Philipp Kohlschreiber (First round)
6. Marco Cecchinato (First round)
7. Richard Gasquet (Second round, withdrew)
8. Fernando Verdasco (Second round)

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
		Nicolás Jarry	5	6	1
	Q	Nikoloz Basilashvili	7	0	6
								Q	Nikoloz Basilashvili	6	0	7
									Leonardo Mayer	4	6	5
	Q	Jozef Kovalík	7^8	4	6^7
		Leonardo Mayer	6^6	6	7^9

Top half

	First Round							Second Round							Quarterfinals							Semifinals
	1	D Thiem	6	6
	Q	C Moutet	4	2				1	D Thiem	6	6
		J Millman	7	6					J Millman	2	2
		J-L Struff	5	3											1	D Thiem	6^5	6^7
		N Jarry	6	6												N Jarry	7^7	7^9
		P Gojowczyk	1	2					N Jarry	w/o
		B Paire	5	3				7	R Gasquet
	7	R Gasquet	7	6																			N Jarry	5	6	1
	3	P Carreño Busta	2	6	7^7																	Q	N Basilashvili	7	0	6
	WC	F Mayer	6	1	6^4			3	P Carreño Busta	6	4
		A Bedene	6	1	6				A Bedene	2	0^r
	SE	H Laaksonen	3	6	4										3	P Carreño Busta	6^3	4
		M Fucsovics	3	2											Q	N Basilashvili	7^7	6
		P Cuevas	6	6					P Cuevas	6^6	4
	Q	N Basilashvili	7	1	6			Q	N Basilashvili	7^8	6
	5	P Kohlschreiber	5	6	4

Bottom half

	First Round							Second Round							Quarterfinals							Semifinals
	8	F Verdasco	6	4	7^7
		D Lajović	3	6	6^5			8	F Verdasco	6	2	5
		G Simon	6^2	2				LL	T Monteiro	3	6	7
	LL	T Monteiro	7^7	6											LL	T Monteiro	6	3	2
		D Ferrer	5	7	3										Q	J Kovalík	3	6	6
	WC	R Molleker	7	5	6			WC	R Molleker	4	0
	Q	J Kovalík	6	6				Q	J Kovalík	6	6
	4	D Džumhur	2	4																		Q	J Kovalík	7^8	4	6^7
	6	M Cecchinato	4	6	4																		L Mayer	6^6	6	7^9
		G Monfils	6	3	6				G Monfils	1	5
		L Mayer	6	6					L Mayer	6	7
		A Ramos Viñolas	3	2												L Mayer	6	4	6
	Q	D Masur	6	6											2	D Schwartzman	3	6	3
		M Marterer	3	4				Q	D Masur	2	2
	WC	C Ruud	4	6	2			2	D Schwartzman	6	6
	2	D Schwartzman	6	2	6

Qualifying

Seeds

1. Nikoloz Basilashvili (Qualified)
2. Jozef Kovalík (Qualified)
3. Corentin Moutet (Qualified)
4. Lorenzo Sonego (First round)
5. Martin Kližan (First round)
6. Thiago Monteiro (Qualifying competition, Lucky loser)
7. Calvin Hemery (First round)
8. Carlos Berlocq (First round)

Qualifiers

1. Nikoloz Basilashvili
2. Jozef Kovalík
3. Corentin Moutet
4. Daniel Masur

Lucky loser

1. Thiago Monteiro

Qualifying draw

First qualifier

	First Round							Qualifying Competition
	1	Nikoloz Basilashvili	7	6
		Tobias Kamke	5	2
								1	Nikoloz Basilashvili	6	4	7
								PR	Jürgen Melzer	4	6	5
	PR	Jürgen Melzer	6	6
	5	Martin Kližan	3	4

Second qualifier

	First Round							Qualifying Competition
	2	Jozef Kovalík	6	6
	WC	Niklas Guttau	0	1
								2	Jozef Kovalík	6	3	6
								6	Thiago Monteiro	3	6	0
		Roberto Quiroz	4	3
	6	Thiago Monteiro	6	6

Third qualifier

	First Round							Qualifying Competition
	3	Corentin Moutet	6	6
	WC	Marvin Möller	2	3
								3	Corentin Moutet	6	6
									Danilo Petrović	4	4
		Danilo Petrović	5	7^7	7
	7	Calvin Hemery	7	6^4	5

Fourth qualifier

	First Round							Qualifying Competition
	4	Lorenzo Sonego	6	1	6^3
	Alt	Renzo Olivo	3	6	7^7
								Alt	Renzo Olivo	6	5	5
								WC	Daniel Masur	4	7	7
	WC	Daniel Masur	7^7	4	6
	8	Carlos Berlocq	6^4	6	3

References

• Main draw
• Qualifying draw