Singles
2017 Città di Caltanissetta
Champion	Paolo Lorenzi
Runner-up	Alessandro Giannessi
Score	6–4, 6–2

Paolo Lorenzi was the defending champion and successfully defended his title, defeating Alessandro Giannessi 6–4, 6–2 in the final.

Seeds

Draw

Finals

	Semifinals							Final
	1/WC	Paolo Lorenzi	6	6
	4	Radu Albot	4	4
								1/WC	Paolo Lorenzi	6	6
								7	Alessandro Giannessi	4	2
	7	Alessandro Giannessi	6	77
	Q	Cedrik-Marcel Stebe	3	65

Top half

	First round							Second round							Quarterfinals							Semifinals
	1/WC	P Lorenzi	7	6
		M Arévalo	5	4				1/WC	P Lorenzi	66	6	6
		A Arnaboldi	4	3					L Đere	78	3	2
		L Đere	6	6											1/WC	P Lorenzi	6	3	6
		G Andreozzi	6	6												G Andreozzi	2	6	4
		A Vatutin	1	4					G Andreozzi	7	77
		J Kovalík	4	4				5	F Bagnis	5	65
	5	F Bagnis	6	6																		1/WC	P Lorenzi	6	6
	4	R Albot	6	7																		4	R Albot	4	4
		J McGee	2	5				4	R Albot	2	6	6
		R Bellotti	6	6					R Bellotti	6	4	4
		F Gaio	3	0											4	R Albot	6	3	77
	WC	S Bolelli	7	6											8	T Sandgren	3	6	64
	Q	JP Sorgi	5	2				WC	S Bolelli	6	4	4
		V Šafránek	2	6	2			8	T Sandgren	3	6	6
	8	T Sandgren	6	4	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	7	A Giannessi	7	7
		E López Pérez	5	5				7	A Giannessi	6	6
		Í Cervantes	3	6	7				Í Cervantes	2	3
	Q	M Berrettini	6	2	5										7	A Giannessi	6	1	6
		R Ramanathan	6	4	78										3	M Kukushkin	4	6	1
	Q	S Ofner	2	6	66				R Ramanathan	0	2
	WC	G Mager	4	0				3	M Kukushkin	6	6
	3	M Kukushkin	6	6																		7	A Giannessi	6	77
	6	M Cecchinato	4	7	6																	Q	C-M Stebe	3	65
		J Samper Montaña	6	5	1			6	M Cecchinato	7	3	6
		A Rublev	6	6					A Rublev	5	6	3
		M Zekić	3	4											6	M Cecchinato	1	2
		S Caruso	5	2											Q	C-M Stebe	6	6
		S Travaglia	7	6					S Travaglia	77	66	3
	Q	C-M Stebe	6	6				Q	C-M Stebe	63	78	6
	2/WC	D Lajović	2	2

References

• Main draw
• Qualifying draw