Great Britain’s cyclists continued their domination of the velodrome as Team GB took its London 2012 gold medal tally to 18 on day 10.
Bolton’s Jason Kenny claimed gold in the men’s sprint.
Kenny was selected over 2008 champion Sir Chris Hoy for the individual event, and he justified that choice with his second gold of the Games and third of his career.
The 24-year-old from Bolton never looked in too much trouble as he claimed a 2-0 final victory over three-time world champion Gregory Bauge of France.
Kenny said: “Before we went up for the very last ride it dawned on me that if Chris was in my shoes here, there was no way he’d lose this one.
“It was just a case of getting up and justifying my place.”
Dai Greene’s bid for Olympic gold ended in disappointment as he had to settle for an agonising fourth place in the 400m hurdles final.
The Welshman was never in the race running from lane three and finished in 48.24 seconds – 0.14secs off a medal.
Felix Sanchez, the 34-year-old from the Dominican Republic, took gold eight years after winning the title in 2004 in 47.63s.
Greene said: “I gave it everything I had. I was just a bit too tired at the end there.”
In gymnastics, British world champion Beth Tweddle won bronze on the uneven bars at the North Greenwich Arena in probably her last Olympic Games.
The 27-year-old has four world titles and is the most decorated GB gymnast in history. A step back on landing may have cost her higher honours.
Tweddle was thrilled to win a medal. She said: “It means everything. I just wanted to win a medal it didn’t matter what colour.”
The City of Liverpool gymnast – who picked up the first ever British women’s individual Olympic medal in the sport – added: “I could have played it safe and gone for an easy routine but I wouldn’t have had the difficulty there, and I wouldn’t have been able to contend for a medal.
“I had to pull that dismount. It did have a step at the end and a lot of people are saying it could have been gold.”
Russia’s Aliya Mustafina claimed gold, ahead of defending Olympic champion He Kexin, of China.