Britain's Mo Farah is on course for a second Olympic Gold after qualifying for the final of the men's 5,000m on Saturday.
Farah, who won the 10,000m in front of an ecstatic crowd at the Olympic Stadium, finished his heat a comfortable third.
The 29-year-old said afterwards he was was a little tired but happy with his performance.
"It was pretty difficult," he told the BBC. "I was a bit tired, it took a bit more out of me than I was expecting but I'm really happy with where I am now and I've got a couple of days off."
Britain's Daniel Awde made a superb start to the decathlon with a personal best in the opening event in the Olympic Stadium.
Awde, 24, responded to the roars of supporters with a storming run of 10.71 seconds in the fourth and final heat of the 100m, taking 0.14secs off his previous best.
But there was disappointment this morning for Tim Brabants in the men's canoe sprint. The gold medallist in Beijing could only managed eighth in the 1,000m K1 at Eton Dorney.
Brabants, who is not back to full fitness after a serious tendon injury, struggled throughout the race, which was won by Norway's Eirik Veras Larsen.
Britain's showjumpers are hoping to get back on the gold medal trail at Greenwich Park later.
Three members of the team that won Britain's first showjumping gold since 1952 - Nick Skelton, Ben Maher and Scott Brash - are taking part in the individual competition.
On Tuesday, an historic sixth gold medal from Sir Chris Hoy helped Britain to its best Olympic performance for more than a century.
His victory in the keirin took Team GB's tally to 48 medals - 22 gold, 13 silver and 13 bronze - making it their most successful Games in over a century and overtaking the haul in Beijing.
It was the 36-year-old Scot's second gold of London 2012 after his win in the team sprint. He now has seven Olympic medals in all, the other being a silver, making him the most decorated British Olympian of all time.
Just an hour earlier in the Velodrome Laura Trott, 20, lifted her second gold medal of the Games by winning the women's omnium.
Those performances came after the dressage team trotted to a rare victory over Germany, who had not been beaten in the event at the Olympics since 1984.
History was also made by Alistair Brownlee when he became the first Briton ever to triumph in the men's triathlon. His younger brother Jonny made it a family double with bronze.
There was further success for Team GB in Weymouth as Nick Dempsey took silver in the men's windsurfing and Robbie Grabarz claimed bronze - shared with two other athletes - in the high jump.