Scott Evans of Ireland will head into the last 16 of the men's badminton singles after remaining unbeaten in the group stages.
Evans beat Georgios Charalambidis of Greece 21-7 21-9, before being taken to three sets by Belgium's Yuhan Tan with a 14-21 21-13 21-13 scoreline.
The 27-year-old then beat Hungary's Gergely Krausz 21-16 21-7.
Evans will need to wait for the other groups to finish before finding out who he faces in the next round.