South Korea beat Belgium 3-1 for its second group win in women's Olympic field hockey on Monday.
The victory lifted South Korea into the 7th-8th playoff against Germany.
Belgium, winless in its Olympic debut, finished last in Pool A and will meet the United States to avoid the wooden spoon.
Kim Jong-eun was set up by Park Mi-hyun for the opening goal after eight minutes and captain Lee Seon-ok made it 2-0 by halftime from a penalty corner goal.
A diving Erica Coppey hit in the loose ball in front of the goal to halve the deficit, but Kim gave the Koreans the last say with her second goal on fulltime.