Singles
2018 Istanbul Open
Champion	Taro Daniel
Runner-up	Malek Jaziri
Score	7–6(7–4), 6–4
Draw	28 (4 Q / 3 WC )
Seeds	8

Marin Čilić was the defending champion, but lost in the second round to Malek Jaziri.

Taro Daniel won his first ATP World Tour title, defeating Jaziri in the final, 7–6^(7–4), 6–4.

Seeds

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

Draw

Finals

	Semifinals							Final
		Malek Jaziri	6	6
		Laslo Đere	3	2
									Malek Jaziri	64	4
									Taro Daniel	77	6
		Taro Daniel	6	4	6
		Jérémy Chardy	3	6	4

Top half

	First round							Second round							Quarterfinals							Semifinals
								1	M Čilić	4	2
		M Jaziri	6	6					M Jaziri	6	6
	WC	M İlhan	1	2												M Jaziri	3	6	6
	Q	T Monteiro	6	3	6										7	J Veselý	6	4	1
		G Melzer	2	6	1			Q	T Monteiro	2	6	63
	Q	D Gimeno Traver	3	1				7	J Veselý	6	2	77
	7	J Veselý	6	6																			M Jaziri	6	6
																							L Đere	3	2
								3	A Seppi	3	77	3
		L Đere	77	78					L Đere	6	64	6
		D Istomin	65	66												L Đere	65	7	77
	Q	M Trungelliti	4	6	6										5	P Lorenzi	77	5	63
	Q	E Ymer	6	3	2			Q	M Trungelliti	2	65
	WC	C İlkel	2	3				5	P Lorenzi	6	77
	5	P Lorenzi	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	6	V Troicki	3	6	7
	WC	B Tomic	6	0	5			6	V Troicki	2	3
		R Albot	4	4					R Dutra Silva	6	6
		R Dutra Silva	6	6												R Dutra Silva	6	1	4
		T Daniel	7	6												T Daniel	1	6	6
		M Berrettini	5	3					T Daniel	6	6
								4	A Bedene	2	2
																							T Daniel	6	4	6
	8	N Basilashvili	5	3																			J Chardy	3	6	4
		J Chardy	7	6					J Chardy	4	77	6
		J Millman	4	0					D Lajović	6	63	2
		D Lajović	6	6												J Chardy	6	6
		T Fabbiano	6	6												T Fabbiano	2	2
		M Youzhny	1	1					T Fabbiano	6	0	6
								2	D Džumhur	2	6	2

Qualifying

Qualifying draw

First qualifier

	First round							Qualifying competition
	1	Ramkumar Ramanathan	6	6
		Aldin Šetkić	4	3
								1	Ramkumar Ramanathan	4	3
									Marco Trungelliti	6	6
		Marco Trungelliti	6	6
	5	Sebastian Ofner	3	2

Second qualifier

	First round							Qualifying competition
	2	Ilya Ivashka	62	2
		Daniel Gimeno Traver	77	6
									Daniel Gimeno Traver	77	6
								8	Stefano Napolitano	65	3
		Tobias Kamke	2	4
	8	Stefano Napolitano	6	6

Third qualifier

	First round							Qualifying competition
	3	Thiago Monteiro	6	6
	WC	Mert Alkaya	3	1
								3	Thiago Monteiro	6	77
									Tommy Robredo	3	65
		Tommy Robredo	6	6
	6	Viktor Galović	3	4

Fourth qualifier

	First round							Qualifying competition
	4	Elias Ymer	78	6
		Václav Šafránek	66	1
								4	Elias Ymer	64	6	7
								7	Hubert Hurkacz	77	4	5
	WC	Sarp Ağabigün	2	3
	7	Hubert Hurkacz	6	6

References

• Main Draw
• Qualifying Draw