2018 Båstad Challenger

Country	Player	Rank1	Seed
ARG	Guido Andreozzi	105	1
SWE	Elias Ymer	108	2
FRA	Corentin Moutet	125	3
BRA	Thiago Monteiro	130	4
SUI	Henri Laaksonen	142	5
FRA	Calvin Hemery	148	6
CAN	Félix Auger-Aliassime	152	7
GER	Oscar Otte	166	8

• ¹ Rankings are as of 2 July 2018.^[1]

The following players received wildcards into the singles main draw:

• Filip Bergevi
• Markus Eriksson
• Jonathan Mridha
• Mikael Ymer

The following players received entry from the qualifying draw:

• Geoffrey Blancaneaux
• Filip Horanský
• Jules Okala
• Wu Di

The following player received entry as a lucky loser:

• Lukáš Klein

• Pedro Martínez def. Corentin Moutet 7–6^(7–5), 6–4.

• Harri Heliövaara / Henri Laaksonen def. Zdeněk Kolář / Gonçalo Oliveira 6–4, 6–3.