They are: Tamara Echegoyen and Berta Betanzos (ESP), Martine Grael and Kahena Kunze (BRA), Jena Hansen and Katja Salskov-Iversen (DEN) and Alex Maloney and Molly Meech (NZL).
Catch a glimpse of what the sailors are thinking ahead of their start and check out the line up below:
Alex Maloney and Molly Meech - New Zealand
Maloney - We're both really excited to be out here today and it's going to be a really exciting race. We're just going to try and sail the best race we can and the results will take care of themselves. We're just going to go out and send it.
Meech - That's been our aim this week [to get another family medal] and it would be amazing to get a medal today. We plan to keep it simple, have fun and stay composed.
Tamara Echegoyen and Berta Betanzos - Spain
Echegoyen - All four teams fighting for a medal are all very good and our scores are so similar so we are going to have to give our best. We are really happy to be able to fight for a medal which we really want to win.
Betanzos - It seems that the conditions for our medal race will be very good and we are really keen to go sailing and to enjoy the race. For this race we will have to do a good start then a good race to make sure the teams fighting for the medals are behind us.
Find information below on how to follow the Rio 2016 Olympic Sailing Competition.
RESULTS / ENTRIES
A full list of sailors racing at the Rio 2016 Olympic Games is available to view here - http://www.sailing.org/olympics/rio2016/qualification/sailors.php#.V6ZHvo6BLqM. Results are available here - https://www.rio2016.com/en/sailing-schedule-and-results
LIVE TRACKING
The racing will be available to watch in 2D and 3D via the live tracking. Live tracking will be available when racing commences via - http://www.sailing.org/olympics/rio2016/multimedia/live_tracking.php
Live Tracking via the Sailviewer-3D Tablet App will be available for devices with 7" or greater screens.
Click here to download the iOS Application - https://itunes.apple.com/us/app/sailviewer-3d/id912801278
Click here to download the Android Application - https://play.google.com/store/apps/details?id=com.stsportservice.sailviewer
COMPETITION STATUS
The Competition Status Screen feeds in straight from the Race Committee boats with the teams inputting data such as race times, course type, the status of each race and the plan moving forward. The competition status screen will be available when racing commences via - http://www.sailing.org/olympics/rio2016/multimedia/live_tracking.php
LIVE BLOGGING
Sailing journalist Craig Leweck will be following the racing LIVE on World Sailing's Olympic Blog throughout Rio 2016. Follow LIVE here - http://www.sailing.org/olympics/rio2016/multimedia/live_blog.php#.V6dUbY6BLqM
PRESS RELEASES
World Sailing will be releasing international press releases after racing throughout the duration of the Rio 2016 Olympic Games. All the latest news and reports will be available to read here - http://www.sailing.org/olympics/rio2016/news/index.php
TELEVISION
To find out who your Olympic broadcaster is, click here - https://www.olympic.org/rio-2016/broadcasters. The following link - http://go.olympic.org/WS - will redirect you to the Rights Holding Broadcaster in your country.
SOCIAL MEDIA
Follow the event on World Sailing's social networks:
Facebook - https://www.facebook.com/ISAFWorldSailing
Instagram - https://instagram.com/isafworldsailing/
Twitter - @worldsailing
Snapchat - Follow our Story on Snapchat, search for worldsailing
USEFUL LINKS
World Sailing Olympic Website - http://www.sailing.org/olympics/rio2016/home.php
Competition Schedule - http://www.sailing.org/olympics/rio2016/about/schedule.php
Latest Olympic Sailing news - http://www.sailing.org/olympics/rio2016/news/index.php
Online Notice Board - http://www.sailing.org/olympics/rio2016/results/notices/notices.php
Social Wall - http://www.sailing.org/olympics/rio2016/multimedia/social_wall.php#.V6ZteY6BLqM
World Sailing Newsletter
World Sailing Newsletter is the weekly online newsletter of World Sailing.
It features the latest news and events from the sailing world together with features and info in an easy-to-use format.
It features the latest news and events from the sailing world together with features and info in an easy-to-use format.