Olympic sailing legend Shirley Robertson has not entirely ruled out a London 2012 Olympic campaign.

But she admits that the chances are slim as her three-year-old twins take a priority in her life.

The 41-year-old was speaking in Almeria, Spain, where her team finished sixth in the iShares Cup.

"I am toying with the idea of match racing, but if I do it will be later. I am not going to commit three years on. There's a 10 per cent chance,'' she said.

Robertson, who lives in Cowes on the Isle of Wight with husband Jamie Boag and their baby son and daughter, said: "That's why it's such a difficult decision to go back because it is so all-encompassing.

"I miss some aspects of it, but definitely not others.

"It's a lot of hard work, doing the same thing day after day. My life isn't like that, it's interesting because I do lots of different things.

"To win a gold medal is a very selfish pursuit, it's all-encompassing and it's hard to do other things.''

Robertson became the first British woman to win gold at consecutive Olympics, Sydney 2000 and Athens 2004, and only the second woman ever.

"I do miss the racing; I love the intensity of the racing and it's a luxury to have that one thing that you are working towards,'' she said.

"I miss that clarity of goals.''

She said sailing as part of a team and building a "special bond'' through the highs and lows was also something she missed about her Olympic campaigning.

"We will do exceptionally well in Weymouth,'' she said.

"We have been the top nation in the world since Sydney. A home Games will only add to that dominance.''

She cited Annie Lush as "probably the best women's match-racing sailor in the world".

Lush is racing with Lucy MacGregor in the new women's match-racing class.

But Robertson said the new match racing - which has replaced the Yngling class in which she, Sarah Ayton and Sarah Webb took gold in 2004 - was almost a different sport.

"It's s*** or bust,'' she said. "One race, one chance, one bad decision.''

Pippa Wilson, a 2008 gold medallist in the Yngling class, was another Olympic prospect for 2012 who "knows what it takes to win'' and is "very dedicated and talented", said Robertson.

Speaking on the home conditions the Brits will face, Robertson added: "Most of the British sailors live in Weymouth now, you can't underestimate familiarity.

"You get a feel for the waves, the weather. You are comfortable there. The drawback for the sport is that it's so far from London but we would rather have good conditions.

"It's all about winning a medal, whether there's huge crowds or just your mum and dad.

"To win a medal at home, it's going to be fantastic for the sport.''