Singles
2018 Brest Challenger
Champion	Hubert Hurkacz
Runner-up	Ričardas Berankis
Score	7–5, 6–1

Corentin Moutet was the defending champion but lost in the second round to Julien Benneteau.

Hubert Hurkacz won the title after defeating Ričardas Berankis 7–5, 6–1 in the final.

Seeds

Draw

Finals

	Semifinals							Final
		Stefano Travaglia	61	2r
	4	Hubert Hurkacz	77	4
								4	Hubert Hurkacz	7	6
									Ričardas Berankis	5	1
	3	Roberto Carballés Baena	2	2
		Ričardas Berankis	6	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	J Benneteau	6	6
		M Moraing	4	3				1	J Benneteau	7	6
		C Moutet	3	6	6				C Moutet	5	4
		L Vanni	6	2	3										1	J Benneteau	64	3
	SE	F Baldi	4	4												S Travaglia	77	6
		S Travaglia	6	6					S Travaglia	64	6	7
		S Robert	4	6	2			5	J Veselý	77	2	5
	5	J Veselý	6	3	6																		S Travaglia	61	2r
	4	H Hurkacz	77	6																		4	H Hurkacz	77	4
	WC	A Hoang	61	3				4	H Hurkacz	6	3	6
	Q	C Hemery	3	7	6			Q	C Hemery	1	6	3
		G Barrère	6	5	3										4	H Hurkacz	6	77
	Q	B Bonzi	6	6											Q	B Bonzi	2	62
		E López Pérez	3	1				Q	B Bonzi	77	6
	Q	TK Wang	6	77				Q	TK Wang	62	4
	LL	T Brkić	2	63

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	7	L Sonego	7	6
		Y Maden	5	2				7	L Sonego	77	6
		E Ymer	6	6					E Ymer	61	3
	Q	I Gakhov	3	2											7	L Sonego	4	6	4
	WC	Antoine Cornut Chauvinc	6	6											3	R Carballés Baena	6	2	6
	SE	G Sakharov	3	2				WC	A Cornut Chauvinc	3	5
		N Mahut	6	66	3			3	R Carballés Baena	6	7
	3	R Carballés Baena	0	78	6																	3	R Carballés Baena	2	2
	8	M Mmoh	2	4																			R Berankis	6	6
		R Berankis	6	6					R Berankis	6	6
		Q Halys	4	77	6				Q Halys	2	2
		S Bolelli	6	65	3											R Berankis	6	6
	WC	C Denolly	6	77											2	J Munar	3	4
	WC	M Martineau	2	65				WC	C Denolly	2	2
		C Lestienne	1	3				2	J Munar	6	6
	2	J Munar	6	6

References

• Main Draw
• Qualifying Draw