America's Cup World Series 2015 to kick off in Cagliari

Nathan Outteridge contemplates the line-up for this week's event in Sorrento, Australia

Morgan Larson and crew claim the Extreme Sailing Series Sydney and the 2014 championship

Morgan Larsen's team on fire at the Extreme Sailing Series Sydney

Gusty conditions as racing gets underway at the Extreme Sailing Series Sydney

We consider Tuesday's announcement

Alinghi overhaul Realteam to make it a Swiss 1-2 at the conclusion of the Extreme Sailing Series Nice

Racing sets sail at 15:30 local time (13:30 UTC)

Leigh McMillan on the wire going into the final day of the Extreme Sailing Series Nice

As Emirates Team New Zealand is on the ascent at the Extreme Sailing Series Nice

Broadcast starts at 15:30 local time (13:30 UTC)

Realteam leads after day one of the Extreme Sailing Series Nice

Dean Barker brings us up to speed

As Alinghi goes for The Wave, Muscat's jugular in the finale of the Extreme Sailing Series Istanbul

As the Extreme Sailing Series cats get to race up the Bosphorus

Oman Air and GAC Pindar on a charge at the Extreme Sailing Series Istanbul

Dramatic opening day at the Extreme Sailing Series Istanbul

The official line from the America's Cup press conference in London

Despite a three way collision in today's final race at the Extreme Sailing Series Cardiff

A lighter more tactical day at the Extreme Sailing Series Cardiff

Racing gets underway on Sunday at 1530BST-1430GMT

But The Wave, Muscat is close behind at the Extreme Sailing Series Cardiff

Blustery opening day on the water at the Extreme Sailing Series Cardiff

Five teams have paid their US$ 1 million

Extreme Sailing Series heads for Cardiff next week

RNZYS confirms participation in 35th America's Cup

Points of agreement announced between 'most' of the Challengers

Alinghi is star of the show at the Extreme Sailing Series in St Petersburg