At the 2008 Summer Olympics in Beijing Guo finished her ranking round with a total of 636 points.
This gave her the 25th seed for the final competition bracket in which she faced Charlotte Burgess in the first round.
[1] Together with Chen Ling and Zhang Juanjuan she also took part in the team event.
With her 636 score from the ranking round combined with the 645 of Chen and the 635 of Zhang the Chinese team was in third position after the ranking round, which gave them a straight seed into the quarter-finals.
This biographical article relating to a Chinese archery figure is a stub.