FOCUS ON-Sailing at the Tokyo Olympics

FILE PHOTO: A passerby wearing a protective face mask walks past a screen showing the logo of the Tokyo 2020 Olympic Games that have been postponed to 2021 due to the coronavirus disease (COVID-19) pandemic, in Tokyo, Japan, April 14, 2021. REUTERS/Issei Kato/File Photo

(Reuters) - Focus on sailing at the 2020 Tokyo Olympics:

THE ABSOLUTE BASICS * There are 10 events featuring four different classes of boats (skiffs, sailboards, dinghies and multihull craft). * The RS:X class are windsurfing competitions that fall under the banner of sailing. * Wind, waves and weather have a major influence on the outcome of competitions, with athletes required to make split-second judgements. * When sailing into the wind, boats use a zig-zag movement called tacking. * Boats navigate a triangular-shaped course, contending with the wind from three directions. They must pass marker buoys a specified number of times in a pre-determined order before heading for the finish line.