Richard Jackson trophy won by contractor's superfast boat on first day of Europe's largest corporate sailing event

The sailing team from Sir Robert McAlpine won the Richard Jackson trophy on the first day of the Little Britain Challenge Cup in their boat, Panthera.

The team, which races in the superfast class - zero - is now the team to beat, leaving its closest competitor, Imtech, eight minutes adrift. Sir Robert McAlpine was last year's Little Britain winner and is a veteran competitor.

However, Sir Robert McAlpine could not repeat the performance in the class one race, with the UK contracting firm's boat, Silk Glove, narrowly losing out to QS Capita Symonds' team.

Newcomer Bouygues leads the class two race, with 2007 bronze medal winner Moxley Architects ahead in class three so far.

Teams from Costain, BDP and Bovis Lend Lease all put themselves in good positions with impressive sailing on the first day in other classes.

This year marks the 21st Little Britain Challenge Cup, which the organisers claim is now the largest corporate sailing event in Europe. Some 250 boats and 3,000 competitors are attending across nine racing classes.