The individual eventing at the 2008 Summer Olympics took place between August 9 and 12 2008 at the Hong Kong Sports Institute.

That score was then subtracted from 100 and multiplied by 1.5 to give the number of penalty points.

For the dressage portion of the competition, horse and rider pairs performed series of movements that were evaluated by judges.

Judges gave marks of 0 to 10 for each movement, subtracting points for errors.

This was then subtracted from 100 and multiplied by 1.5 to determine the number of penalty points awarded for the round.