Singles
2018 Båstad Challenger
Champion	Pedro Martínez
Runner-up	Corentin Moutet
Score	7–6(7–5), 6–4

Dušan Lajović was the defending champion but chose not to defend his title.

Pedro Martínez won the title after defeating Corentin Moutet 7–6^(7–5), 6–4 in the final.

Seeds

Draw

Finals

	Semifinals							Final
	Q	Filip Horanský	4	6	3
	3	Corentin Moutet	6	4	6
								3	Corentin Moutet	65	4
									Pedro Martínez	77	6
		Pedro Martínez	6	6
	WC	Mikael Ymer	3	4

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	G Andreozzi	2	6	6
		A Collarini	6	4	2			1	G Andreozzi	4	7	64
		L Rosol	6	6					L Rosol	6	5	77
		J Tatlot	3	2												L Rosol	3	1
	Q	F Horanský	6	0											Q	F Horanský	6	6
		S Nagal	2	0r				Q	F Horanský	78	6
		L Harris	6	6					L Harris	66	4
	5	H Laaksonen	4	4																		Q	F Horanský	4	6	3
	3	C Moutet	6	6																		3	C Moutet	6	4	6
		Ze Zhang	2	4				3	C Moutet	6	3	6
		G Oliveira	6	7					G Oliveira	4	6	2
	WC	J Mridha	4	5											3	C Moutet	7	6
		U Ignatik	79	4												C Lestienne	5	3
	Q	Jules Okala	67	0r					U Ignatik	1	4
		C Lestienne	6	3					C Lestienne	6	6
	7	F Auger-Aliassime	4	2r

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	8	O Otte	2	4
	Q	D Wu	6	6				Q	D Wu	6	4	2
		V Šafránek	6	0	7				V Šafránek	1	6	6
	WC	F Bergevi	3	6	5											V Šafránek	5	2
		P Martínez	6	6												P Martínez	7	6
	Q	G Blancaneaux	4	1					P Martínez	6	6
	LL	L Klein	4	64				4	T Monteiro	4	4
	4	T Monteiro	6	77																			P Martínez	6	6
	6	C Hemery	6	6																		WC	M Ymer	3	4
	WC	M Eriksson	4	1				6	C Hemery	4	6	2
		Z Kolář	3	6	0			WC	M Ymer	6	3	6
	WC	M Ymer	6	1	6										WC	M Ymer	6	4	7
		I Nedelko	3	0												C Berlocq	1	6	5
		C Berlocq	6	6					C Berlocq	3	77	6
		JI Londero	6	6					JI Londero	6	61	4
	2	E Ymer	1	4

References

• Main Draw
• Qualifying Draw