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Sander Gillé and Joran Vliegen were the defending champions but chose not to defend their title.

Fabrício Neis and David Vega Hernández won the title after defeating Hsieh Cheng-peng and Rameez Junaid 7–6, 6–1 in the final.

Seeds

1. Romain Arneodo / Sergio Galdós (first round)
2. Ruan Roelofse / Christopher Rungkat (quarterfinals)
3. Hsieh Cheng-peng / Rameez Junaid (final)
4. Roberto Maytín / Andreas Siljeström (first round)

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	R Arneodo S Galdós	6	3
		T Lipovšek Puches JI Londero	3	6					T Lipovšek Puches JI Londero	7	6
	WC	C Denolly A Müller	6	7				WC	C Denolly A Müller	6	2
	WC	Jaimee Floyd Angele Tom Jomby	2	6												T Lipovšek Puches JI Londero
	3	C-p Hsieh R Junaid	7	6											3	C-p Hsieh R Junaid	w/o
		P Cachin D Gimeno Traver	5	4				3	C-p Hsieh R Junaid	6	7
	Alt	João Monteiro B Saraiva	0	1					B Bonzi G Jacq	2	5
		B Bonzi G Jacq	6	6																		3	C-p Hsieh R Junaid	6	1
		L Giustino M Vilella Martínez	4	1																			F Neis D Vega Hernández	7	6
		H Heliövaara H Laaksonen	6	6					H Heliövaara H Laaksonen	3	3
		J Domingues P Sousa	6	6					J Domingues P Sousa	6	6
	4	R Maytín A Siljeström	4	3												J Domingues P Sousa	3	7
		F Neis D Vega Hernández	6	7												F Neis D Vega Hernández	6	6
	WC	M Bourgue A Musialek	4	5					F Neis D Vega Hernández	6	6
		H Hach Verdugo LD Martínez	2	4				2	R Roelofse C Rungkat	3	3
	2	R Roelofse C Rungkat	6	6

References

• Main draw

• 2018 ATP Challenger Tour
• Internationaux de Tennis de Blois