USA quartet smash world record

  • Last Updated: August 11 2012, 0:01 BST

The USA women's team broke a 27-year-old world record as they won Olympic gold in the 4x100m relay on Friday night.

  • Jeter: Points at the clock after crossing the line
  • Meseret Defar celebrates her triumph in the 5000m 
  • Tatyana Lysenko: Olympic hammer champion 
  • Renaud Lavillenie: Pole vault glory 

The American quartet of Tianna Madison, Allyson Felix, Bianca Knight and Carmelita Jeter clocked 40.82 seconds to smash the previous best, set by East Germany in 1985, by nearly half a second.

They also shattered the best-ever Olympic time which had stood for 32 years.

Jamaica's Shelly-Ann Fraser-Pryce - the individual 100m champion - Sherone Simpson, Veronica Campbell-Brown Kerron Stewart took the silver in a national record of 41.41 while Ukraine took the bronze.

It was a measure for revenge for the USA, who have seen Jamaica once again dominate the sprints, last night completing a clean sweep in the men's 200m.

Jeter said: "I knew we had won. Everyone ran an incredible leg. We were able to get the stick around and we were able to get the gold medal and the world record, I knew that right away.

"I knew we were moving, I knew we were running very well and so I was excited."

Felix, who won the 200m, said: "It is a relief, it is a joy, it is everything.

"We went into this race the most comfortable I have seen this team. We were laughing and smiling. We have never been like that."

  • This evening's action at the Olympic Stadium kicks off with the Women's 4x400m relay
  • The first heat is won comfortably by Jamaica, as Rosemary Whyte crosses the finish line to confirm their place in tomorrow's final
  • Lee McConnell, Christine Ohuruoguand and Eilidh Child celebrate a third place finish in the second heat, as they progress to Saturday's final
  • Ashton Eaton of the USA picks up his Gold medal after winning  the Men's Decathlon on Thursday. He is joined on the podium by fellow Americ
  • The capacity crowd roars as Team GB's Adam Gemili completes the final leg of the Men's 4x100m in second place
  • Jubilation is replaced by devestation as it is revealed that the changeover with Danny Talbot occurred outside the designated area; disqualifying the Brits
  • Jamaica win Heat 1 with ease, despite the absence of Usain Bolt
  • 100m Bronze medalist justin Gatlin runs a superb final leg to secure America the fastest qualifying time and first place in the second heat
  • Joanne Pavey and Julia Bleasdale run well in the Women's 5000m, and finish fifth and sixth respectively
  • 2004 Olympic Champion Meseret Defar regains her title, as her last gasp sprint sees her take gold
  • Defar pips fellow Ethiopian and 2008 Gold Medalist Tirunesh Dibaba, who had led the race until the last 100 metres
  • Barbora Spotakova picks up the Gold medal after her win in the Women's Javelin on Thursday night
  • Britain's Sophie Hitchon finishes last in the Final of the Women's Hammerthrow, throwing a distance of 69.33m
  • Russia's Tatyana Lysenko throws an Olympic Record distance of 78.18m to take Gold
  • Carmelita Jeter points to the clock, as she realises that the USA Women's 4x100m team have won Gold and set a new World Record
  • The American's time of 40.82 seconds shatters the long standing record set by the East German team in 1980
  • Morgan Uceny beats the ground in frustration after she trips in the Women's 1500m final
  • Asli Cakir Alptekin of Turkey secures the Gold Medal after a very slow race
  • Dai Greene is devestated as Team GB finish fourth in the Men's 4x400m final
  • Barbados win gold in the event, just beating the USA in the final leg
  • Renaud Lavillenie of France wins Gold in the men's Pole Vault Final
Friday's images of the track and field action taking place at the Olympic Stadium.

Ethiopia's Meseret Defar claimed gold in the 5,000m final, denying her compatriot Tirunesh Dibaba the chance to add another title to the 10,000m crown she won a week ago, having taken gold in both events in Beijing.

Defar, who won 5,000m gold eight years ago in Athens, held off her

challengers down the home straight to win in 15:04.25.

Kenya's Vivian Cheruiyot was second with Dibaba getting the bronze.

Defar said: "I'm very happy. It's a great day for me. Since 2008 I have tried everything as I wasn't able to win the Olympics."

There was a controversial winner of the 1500m as former drug cheat Asli Cakir Alptekin of Turkey took gold, winning a slow race in 4:10.23.

Alptekin, who has served a two-year ban, finished ahead of compatriot

Gamze Bulut, with Bahrain's Maryam Yusuf Jamal third.

There was more agony for American Morgan Uceny as she fell for the second major final in succession, having also hit the track at last year's World Championships in Daegu when she was one of the favourites.

Russia's Tatyana Lysenko has won gold in the women's hammer in an Olympic record of 78.18m.

She led all the way through the competition, having thrown 77.56m with her first attempt, before going even further with her penultimate effort.

Poland's Anita Wlodarczyk took the silver with a final throw of 77.60m, but there was controversy surrounding the bronze.

It was initially given to China's Zhang Wenxiu only to be handed to Germany's Betty Heidler, whose fifth throw of 77.13 had been measured incorrectly by officials.

France's Renaud Lavillenie took gold in a thrilling pole vault final in an Olympic record 5.97m.

Lavillenie looked set for bronze when he failed his first attempt at 5.91m, but passed the height before making his second and final attempt at the next one.

Germany's Bjorn Otto was second with 5.91m, ahead of fellow countryman Raphael Holzdeppe on countback.

"I can't really believe it," the Frenchman said. "Maybe tomorrow I will wake up and realise that I am an Olympic champion.

"The Germans were very strong and they pushed me to my limits. This has to be the best thing in my life."