We are used to watching Sir Ben Ainslie compete on the water - but not on dry land.
That though is going to change this year, because the four time Olympic Gold medalist has pledged to take on the ten mile Great South Run - in support of a charity very close to his heart.
Sarah Gomme reports...
America's Cup sailor Iain Percy from Emsworth is taking part in the Great South run on Sunday in aid of the Andrew Simpson foundation - the charity set up in memory of "Bart', his lifelong friend and sailing parter. The skipper of the Swedish America's Cup team ,Artemis, and double Olympic medallist has been taking time out from sailing to train for the 10-mile race. But he says he's not expecting to run fast. Video shows sailing and interview with Iain Percy.
One last gentle jog in preparation for the big day. Michelle Smeeth is new to running, in contrast to her father-in-law Stu Rogers who's completed more than 100 events. Sunday's Great South Run will be extra special folr them. Sarah Gomme reports.
Athletes are preparing to take part in the 26th Great South Run. Last year 25,000 people took part in the event around Portsmouth - which is now, officially, the biggest 10-mile race in the world, with millions of pounds raised for charity.
Twenty five thousand people are in last minute training for the Great South Run in Portsmouth on Sunday.
Among the charity runners is Sean Gonzales-Lambert from Southampton. Sean is on the autistic spectrum, his identical twin brothers have Downs Syndrome.
Sean is raising money for Rose Road which provides help and respite care for hundreds of disabled children.
Twenty five thousand people will running past Portsmouth's famous landmarks this Sunday - competing in the 25th Great South Run. Joining the amateurs - a very special young man, raising money for the charity that kept his family together. Sean Gonzalez-Lambert is on the autistic spectrum, his identical twin brothers have Downs Syndrome and the charity has helped them all. Kerry Swain takes up the story.
The 25th annual Great South Run takes place in just over a week and one of the region's most successful distance runners has been encouraging youngsters to take to the track.
Andy Vernon was in Portsmouth this week to take part in a fun run event which has so far enabled more than 40,000 youngsters nationwide to run a mile long race.
Sarah Gomme reports:
We continue our countdown to the 25th staging of the Great South Run, now just four weeks away. A group of Royal Marine wives are training for the 10-mile run around Portsmouth, proving its not just their husbands who are capable of a good yomp. Sarah Gomme reports.
25 thousand runners of all abilities - from world-class athletes to fun-runners - pounded the streets of Portsmouth and Southsea today for the 24th Great South Run. It finished well ahead of tonight's storm - but they were hit by punishing headwinds all the same. John Ryall reports.
Despite the breezy conditions 25 thousand people took part in the Great South Run in Portsmouth including husband and wife team, Ian and Kate Maloney.