There will be eight sailing events, each with ten races per event (15 racers for 49er sailors). Out of those ten races, the sailors can discard their worst race score. Then the top ten from the series compete in the final Medal Race.
The points in the Medal Race count for double. These scores are then added on to the overall score. The sailor with the lowest overall points wins.
With 260 sailors from 62 countries competing in the sailing events at the Rio 2016 Olympics, it is set to be an exciting series.
Not sure how the sailing rules work? Here are a few basic race rules to get you started: