At the
2008 Summer Olympics in
Beijing Yun finished her ranking round with a total of 667 points, six points behind ranking leader
Park Sung-hyun. This gave her the second seed for the final competition bracket in which she faced
Albina Kamaltdinova in the first round, beating the archer from
Tajikistan 109-102. In the second round, Yun was too strong for
Marie-Pier Beaudet (114-107) and via
Chen Ling (113-103) in the third round she advanced to the quarter-finals. There she had no problem beating
Khatuna Lorig 111-105. In the semi-final however, she was unable to win against the local
Chinese favourite
Zhang Juanjuan who equaled the newly set Olympic Record by Park Sung-Hyun of 115 points earlier that day. Yun's 109 points were not enough to advance to the final. In the bronze medal match, she scored another 109 points and this time it was good enough to beat
North Korean
Kwon Un-sil who scored 106 points. Together with
Park Sung-hyun and
Joo Hyun-jung she also took part in the team event. With her 667 score from the ranking round combined with the 673 of Park and the 664 of Joo the South Korean team was in first position after the ranking round, which gave them a straight seed into the quarter-finals. With 231-217 they were far too strong for the
Italian team. The 231 also was a new World Record. In the semi-final against
France they scored 213 points with the French scoring 184, securing their final spot. Opponent
China came with a strong 215 points performance, but South Korea won the gold with a 224 points score. ==Asian Games==