Doubles
2018 Sparkassen ATP Challenger
Champions	Sander Gillé Joran Vliegen
Runners-up	Purav Raja Antonio Šančić
Score	3–6, 6–3, [10–3]

Sander Arends and Antonio Šančić were the defending champions but only Šančić chose to defend his title, partnering Purav Raja. Šančić lost in the finals to Sander Gillé and Joran Vliegen.

Gillé and Vliegen won the title after defeating Raja and Šančić 3–6, 6–3, [10–3] in the final.

Seeds

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
• SR = Special ranking

	First round							Quarterfinals							Semifinals							Final
	1	L Bambridge J O'Mara	6	66	[10]
		F Martin J Ocleppo	3	78	[8]			1	L Bambridge J O'Mara	w/o
		S Bolelli V Galović	6	65	[7]			WC	S Napolitano J Sinner
	WC	S Napolitano J Sinner	3	77	[10]										1	L Bambridge J O'Mara	77	63	[6]
	4	S Gillé J Vliegen	77	7											4	S Gillé J Vliegen	64	77	[10]
	WC	Patric Prinoth Alexander Weis	65	5				4	S Gillé J Vliegen	6	6
	WC	R Brancaccio Luca Giacomini	5	62					I Sabanov M Sabanov	4	4
		I Sabanov M Sabanov	7	77																		4	S Gillé J Vliegen	3	6	[10]
		L Lacko S Stakhovsky	6	7																		3	P Raja A Šančić	6	3	[3]
		M Moraing O Otte	2	5					L Lacko S Stakhovsky
		D Bracciali A Vavassori	62	3				3	P Raja A Šančić	w/o
	3	P Raja A Šančić	77	6											3	P Raja A Šančić	7	77
		T Brkić A Pavić	6	4	[6]										2	K Krawietz A Mies	5	62
		D Brown D Novak	4	6	[10]				D Brown D Novak	3	77	[4]
		B Bonzi Q Halys	65	6	[6]			2	K Krawietz A Mies	6	62	[10]
	2	K Krawietz A Mies	77	3	[10]

References

• Main Draw