Team GB will aim to continue their gold medal-winning performances on Thursday after cyclist Bradley Wiggins' record-breaking feat in the time-trial.
Edinburgh-born four-time Olympic champion Sir Chris Hoy begins his London 2012 campaign as the action gets under way in the Velodrome.
Hoy and Jason Kenny won team sprint gold in Beijing and are bidding to defend their title alongside newcomer Philip Hindes on Thursday.
Victoria Pendleton, who is set to retire after the Games, will compete alongside Jess Varnish in the corresponding women's event.
It comes after a double victory on Wednesday when Team GB picked up two medals thanks in part to Scots athletes.
Lossiemouth-based rower Heather Stanning and her partner Helen Glover secured Team GB's first gold medal after crossing the finish line at Eton Dorney to cheers from supporters including the Duke of Cambridge, Prince Harry and the Princess Royal.
Stanning, 27, from Lossiemouth, Moray, is a Royal Artillery captain who is likely to be deployed to Afghanistan in 2013.
In swimming, Glasgow-born Michael Jamieson won a silver medal in the men's 200m breaststroke. In front of a packed crowd at the Aquatic centre, Jamieson won Team GB's ninth medal of the London 2012 Olympics with a time of two minutes 7.43 seconds - the third-fastest time in history.
Elsewhere, Bradley Wiggins claimed a seventh Olympic medal on Wednesday. The 32-year-old clinched gold just ten days after his historic Tour de France victory.
After he raced to glory in the time-trial around Hampton Court he told BBC Three: "I'm just going to get really drunk tonight and have a good think about things."
His seventh medal takes him one clear of rower Sir Steve Redgrave, who has six, making him the most decorated British Olympian of all-time.
His delight at the conclusion of the 44km time-trial was shared by thousands of Union flag-wielding supporters.
He said: "It's really incredible to win an Olympic Gold in your home city. When you win in the velodrome there are three or four thousand people cheering. Here, around the streets of London, the noise is just amazing. I don't think anything will top that. It's just been phenomenal."
Team GB is now 11th in the medal table with nine - two golds, three silvers and four bronze.
The tally is better than it was at the same point in the Beijing Games four years ago.
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