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Register your race times and see where you rank
against competitors from around North America.

2021 A-Class Catamaran
World Championship

St. Petersburg, Florida
November 5 -12, 2021


2021 A-Class Catamaran
World Championship

St. Petersburg, Florida
November 5 -12, 2021


What is the

The A-Class Catamaran World Championship brings approximately 200 sailors together at a different global location each year. The A-Class boats are the fastest wind powered, single-handed sailing boats on the oceans and are capable of speeds up to 30 knots. It has been referred to as the “Formula One car” in catamaran form and the class has developed over the past years into a world-wide sport. Watching the races are always action-packed!

Each year the A-WORLDS brings high-level competitors and their families to beautiful waterfront locations in different countries. For 2021, St. Petersburg, Florida, USA was chosen as the site for the A-WORLDS due to its pristine water and top-notch facilities on land. More information on the venue and general area, including accommodations, can be found under Registration.

Originating in the late 1950s, the A-Class, one of four classes, was created to encourage racing and the designing of catamarans. Today’s A-Class is the largest remnant of the four groups. Boats are now made of carbon fiber to decrease aerodynamic drag and airflow over the boat, which weighs only 75 kilos including the sail.




Register Now


St. Petersburg Yacht Club. 


Where & When


Beautiful Waters of
St. Petersburg


The wind doesn’t need a dashboard to tell you where to go.

You just listen.

The crash of a wave doesn’t require a tank of fuel.

You just feel.

You don’t have to “friend” anyone to connect to the world.

You just show up.

And for a moment of peace or uninvited terror,

You simply wait for it.


Just you and the world.

Race Weather in Tampa Bay

Wind Speed

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in St. Petersburg is increasing during October, increasing from 9.3 miles per hour to 10.6 miles per hour over the course of the month.

Wind Direction

The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Water Temperature

St. Petersburg is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average surface water temperature in St. Petersburg is decreasing during October, falling by 6°F, from 83°F to 77°F, over the course of the month.

Information provided by WeatherSpark.com


Emmanuel Cerf

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