Sir Chris Hoy is Great Britain's most succesful Olympian.

He's just won his sixth career gold medal in the men's keirin cycling - to overtake Sir Steve Redgrave's previous record of 5.

It's Team GB's 22nd gold of London 2012, and fourth of the day - smashing the gold medal haul of 19 from Beijing four years ago.

Today's also seen victory in the men's triathlon, equestrian team dressage - and in the cycling omnium for Laura Trott:

CLIP

However, Victoria Pendleton will have to settle for silver in the veoldrome, after losing to Australian rival Anna Meares in the sprint final - her last race before retiring.

We've also added another silver and bronze today.