Singles
2018 Sparkassen ATP Challenger
Final
Champion	Ugo Humbert
Runner-up	Pierre-Hugues Herbert
Score	6–4, 6–2
Events
Singles Doubles
← 2017 · Sparkassen ATP Challenger · 2019 →

Lorenzo Sonego was the defending champion but lost in the first round to Constant Lestienne.

Ugo Humbert won the title after defeating Pierre-Hugues Herbert 6–4, 6–2 in the final.

	Semifinals							Final
	1	Pierre-Hugues Herbert	77	6
		Dennis Novak	65	4
								1	Pierre-Hugues Herbert	4	2
								6	Ugo Humbert	6	6
	6	Ugo Humbert	6	66	6
		Grégoire Barrère	4	78	3

	First round							Second round							Quarterfinals							Semifinals
	1	P-H Herbert	7	6
		T Brkić	5	4				1	P-H Herbert	78	6
	WC	L Caruana	4	710	6			WC	L Caruana	66	4
		S Robert	6	68	2										1	P-H Herbert	6	6
		D Masur	6	4	64										5	R Berankis	3	2
		O Otte	0	6	77				O Otte	2	7	2
	Q	Tobias Simon	65	4				5	R Berankis	6	5	6
	5	R Berankis	77	6																		1	P-H Herbert	77	6
	3	J Munar	3	63																			D Novak	65	4
	Q	Kirill Kivattsev	6	77				Q	K Kivattsev	3	2
		S Stakhovsky	64	3					S Bolelli	6	6
		S Bolelli	77	6												S Bolelli	65	65
		S Caruso	2	4												D Novak	77	77
		D Brown	6	6					D Brown	2	7	4
		D Novak	1	6	77				D Novak	6	5	6
	8	M Bachinger	6	3	61

	First round							Second round							Quarterfinals							Semifinals
	6	U Humbert	6	6
	Q	B Hassan	4	3				6	U Humbert	64	6	6
	LL	Fabrizio Ornago	65	4					Q Halys	77	3	4
		Q Halys	77	6											6	U Humbert	715	6
	WC	J Sinner	77	6												C Lestienne	613	3
	WC	Luca Giacomini	64	1				WC	J Sinner	78	5	5
		C Lestienne	6	4	6				C Lestienne	66	7	7
	4	L Sonego	1	6	4																	6	U Humbert	6	66	6
	Q	K Krawietz	77	4	77																		G Barrère	4	78	3
		A Hoang	64	6	65			Q	K Krawietz	3	5
		M Moraing	6	6					M Moraing	6	7
	WC	R Brancaccio	2	2												M Moraing	6	1	2
		G Barrère	7	66	6											G Barrère	4	6	6
		S Napolitano	5	78	2				G Barrère	77	77
		A Pavić	79	718					A Pavić	61	63
	2	L Lacko	67	616

• Main Draw
• Qualifying Draw