Singles
2018 Amex-Istanbul Challenger
Champion	Corentin Moutet
Runner-up	Quentin Halys
Score	6–3, 6–4

Malek Jaziri was the defending champion but chose not to defend his title.

Corentin Moutet won the title after defeating Quentin Halys 6–3, 6–4 in the final.

Seeds

Draw

Finals

	Semifinals							Final
	1	Thomas Fabbiano	3	6	4
	4	Quentin Halys	6	4	6
								4	Quentin Halys	3	4
								2	Corentin Moutet	6	6
		Antoine Hoang	6	5	0
	2	Corentin Moutet	2	7	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	T Fabbiano	6	6
	Alt	H Grenier	3	2				1	T Fabbiano	3	6	6
		V Šafránek	1	4					B Bonzi	6	1	4
		B Bonzi	6	6											1	T Fabbiano	3	6	6
		D Yevseyev	63	4												M Viola	6	2	4
		M Viola	77	6					M Viola	6	6
		D Masur	6	3	65			5	C Lestienne	3	1
	5	C Lestienne	0	6	77																	1	T Fabbiano	3	6	4
	4	Q Halys	6	6																		4	Q Halys	6	4	6
	WC	N Kuhn	3	4				4	Q Halys	77	65	6
		A Nedovyesov	6	6					A Nedovyesov	64	77	4
	WC	A Metreveli	3	4											4	Q Halys	6	3	77
	Q	Y Hossam	6	6											7	T Griekspoor	4	6	63
	WC	A Yüksel	3	2				Q	Y Hossam	3	2
	Q	TK Wang	4	1				7	T Griekspoor	6	6
	7	T Griekspoor	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	8	L Miedler	7	3
	SE	E Couacaud	5	0r				8	L Miedler	6	77
	Q	T van Rijthoven	67	2					E Benchetrit	3	62
		E Benchetrit	79	6											8	L Miedler	4	5
		M Janvier	6	3	4											A Hoang	6	7
		A Hoang	4	6	6				A Hoang	60	6	6
		G Oliveira	6	2	6				G Oliveira	77	3	2
	3	A Menéndez Maceiras	3	6	2																		A Hoang	6	5	0
	6	O Otte	6	6																		2	C Moutet	2	7	6
		J Ward	3	3				6	O Otte	3	4
	WC	E Kırkın	2	6	4				C İlkel	6	6
		C İlkel	6	4	6											C İlkel	64	3
		J Menezes	7	6											2	C Moutet	77	6
	Q	A Çelikbilek	5	1					J Menezes	4	0
		T Kamke	4	2				2	C Moutet	6	6
	2	C Moutet	6	6

References

• Main Draw
• Qualifying Draw