Polona Hercog was the defending champion, but chose not to participate.
Liudmila Samsonova won the title, defeating Katarina Zavatska in the final, 6–0, 6–2.
Seeds
Draw
Finals
Top half
Bottom half
References
"2018 L'Open 35 de Saint-Malo – Singles" - ATP Tour website: https://www.atptour.com/en/scores/archive/saint-malo/7698/2018/draws?matchtype=singles "Pedro Sousa Wins L'Open 35 de Saint-Malo" - Tennis Tour Talk website: https://www.tennis-tourtalk.com/33306/pedro-sousa-wins-lopen-35-de-saint-malo "2018 L'Open 35 de Saint-Malo" - ITF website: https://www.itftennis.com/en/tournament/lopen-35-de-saint-malo/fra/2018/m-ch-fra-04a-2018/ "Sousa captures Saint-Malo Challenger title" - Tennis World USA website: https://www.tennisworldusa.org/tennis/news/Challenger_Tour/56105/sousa-captures-saintmalo-challenger-title/
External links Main Draw