Britain is on the brink of history on Tuesday as the host nation looks set to make the London 2012 Games its most successful in more than 100 years.

Hundreds of thousands of fans will be hoping British victories in the triathlon, dressage and cycling will boost Team GB's gold medal haul past the 19 achieved in Beijing four years ago.

It comes after the British showjumping team leapt to a glorious gold in a nailbiting jump-off on Monday and cyclist Jason Kenny rode to victory in the final of the men's sprint.

On the last day of action in the Olympic Velodrome, a trio of Britons are going for gold as Team GB stands third overall with 40 medals - 18 gold, 11 silver and 11 bronze - behind the powerhouses of China and the US.

Track queen Victoria Pendleton bows out from the sport with a sprint finish as she bids to become Britain's most decorated female Olympian. With one gold before the Games began, the 31-year-old took the keirin title on Friday and is looking for a third in the sprint on Tuesday night to go one better than the likes of Dame Kelly Holmes and Rebecca Adlington before retiring.

Five-time Olympic champion Sir Chris Hoy will also be hoping to make it six in the keirin, an event which to many is something of a lottery but appears almost a formality for the Scot.

Sir Chris first became Olympic champion in Athens in 2004, with victory in the 1km time-trial, before claiming a hat-trick of victories in Beijing and the team sprint title on Thursday. And 20-year-old world champion Laura Trott is top of the standings going into the final day of the omnium.

Elsewhere, fans will see brothers Alistair and Jonny Brownlee start as hot favourites for gold and silver in the triathlon as they swim, bike and run around Hyde Park and some of London's iconic sights.

Reigning world champion Alistair, from Horsforth, West Yorkshire, went into the Games as one of the host nation's best hopes for gold after dominating his sport for the last three years.

Carl Hester, the 45-year-old stalwart of British dressage, is aiming for a career-crowning ride in his fourth Olympics as he goes for a team medal alongside Charlotte Dujardin and Laura Bechtolsheimer. The Britons lead the team event, having never previously won an Olympic dressage medal.