Men's rings competition at the 2008 Summer Olympics was held on August 18 at the Beijing National Indoor Stadium.
The eight competitors (with a maximum of two per nation) with the highest scores in qualifying proceeded to the men's rings finals. There, each gymnast performed again; the scores from the final round (ignoring qualification) determined final ranking.
References
Gymnastics at the 2008 Summer Olympics – Men's rings Wikipedia(Text) CC BY-SA