As Oracle Team USA Spithill leads the season championship

As Ben Ainslie loses fleet racing lead in tie break at the America's Cup World Series

As Oracle Team USA Spithill takes a show-stopping tumble at the America's Cup World Series

America's Cup World Series first quarterfinals matches held in San Francisco

JP Morgan BAR leads the America's Cup World Series San Francisco fleet racing

On a breezy opening day of match racing at the America's Cup World Series in San Francisco

The schedule and facilities

Full compliment of crews to do battle on the Solent

Dramatic finale as Emirates Team New Zealand clinch the Extreme Sailing Series in Boston

Emirates Team New Zealand trail Artemis going into the final day of racing at the Extreme Sailing Series Boston

Boston rolls out to see the Extreme Sailing Series

After another light air day at the Extreme Sailing Series in Boston

After the opening day of the Extreme Sailing Series in Boston

Extreme Sailing Series makes its debut in the USA

And this is after 43 races held at the Extreme Sailing Series Istanbul

Third new leader at the Extreme Sailing Series Istanbul

Another day of abused carbon fibre at the Extreme Sailing Series Istanbul

As Terry Hutchinson and Artemis extends on day two of the Extreme Sailing Series Turkey

Extreme Sailing Series Turkey sets sail

Fresh influx from Alinghi...with possibly another significant one to come