Great Britain will be keen to win more medals as the London 2012 Olympics enter Super Saturday, one of the event's biggest days with 25 gold medals up for grabs. The hosts will want to build on the previous day's successes; they won seven medals and - for the second successive day - three of them were gold. The excellent performances have lifted the host nation to fourth in the medal table, after a disappointing start.

One of the golds came in the women's double sculls, where Katherine Grainger and Anna Watkins won with ease, confirming their status as event favourites. The other came from the men's cycling team, in the team pursuit challenge, and set a new world record. The final gold also came in the Velodrome, where Victoria Pendleton won the Keirin.

Here are the highlights for Saturday 4 August:

Jessica Ennis
Jessica Ennis will continue her quest for gold on Saturday

Athletics: Jessica Ennis, who has a strong lead after Day One of the Heptahlon event, will continue her quest for gold on Saturday. The multi-discipline event concludes with the long jump at 10.05am, javelin at 11.40am and the 800m at 8.35pm. Meanwhile, favourite Mo Farah will go for the first of a possible two medals when he competes in the 10,000m at 9.15pm.

The second day of athletics will also see 100m champion Usain Bolt of Jamaica in action for the first time, in the men's 100m heats, at 10am and South Africa's Oscar Pistorius will enter history books as the first amputee to compete on the track at the Olympics. The women's 100m final is scheduled for 9.55pm.

Rowing: The hosts' rowing representatives will take to the waters at Eton Dorney with two Olympic titles to defend. The men's rowing four team will be under immense pressure to deliver a gold for the fourth successive Olympics. However, Andrew Triggs Hodge, Pete Reed, Tom James and Alex Gregory will start the 11.30am final wary of the threat posed by the Australians. The other title the hosts will expect to defend is the men's lightweight double scull, with world champions Zac Purchase and Mark Hunter scheduled to take to the water at 12.10pm. Meanwhile, there could be a third gold for the day from rowing alone - Team GB's Katherine Copeland and Sophie Hosking will go into the women's lightweight boat final at 11:50am as one of the favourites.

Danielle King, Laura Trott and Joanna Rowsell
Danielle King, Laura Trott and Joanna Rowsell will go for gold in the women's team pursuit final

Track Cycling: Laura Trott, Dani King and Joanna Rowsell, who broke the World Record when they won the world title in the women's team pursuit at Melbourne earlier this year, qualified for the final (set for 4.11pm) by setting yet another record. It will be a massive upset if Team GB does not win this event. The 20 year old Trott will also compete in the six-discipline, two-day omnium later at the Velodrome and could become one of the stars of London 2012's stars.

Triathlon: Team GB's Helen Jenkins is in great form heading into Saturday's race at Hyde Park at 8.55am. The 28-year-old will have support from team mates Lucy Hall and Vicky Holland, while Erin Densham of Australia, Nicola Spirig of Switzerland and Paula Findlay of Canada could be medal threats to the Welsh triathlete.

Swimming: Francesca Halsall will give the hosts a chance to increase their medal tally when she participates in the women's 50m freestyle final at 7.30pm. But the spotlight will be on Michael Phelps, who will try to win a record-extending 18th Olympic gold medal in his last competitive race, when Team USA compete in the men's 4x100m medley at 8.27pm.

Tennis: Team GB's Andy Murray and Laura Robson will be in action on Centre Court in their mixed doubles quarter final against Australians Lleyton Hewitt and Sam Stosur at 12pm. Meanwhile, Murray will face top seed Roger Federer of Switzerland in the men's singles final on Sunday - in a repeat of last month's Wimbledon final - after beating Novak Djokovic of Serbia in straight sets in the semi-final. Finally, two-time Olympic gold medallist Serena Williams of the USA will go up against Maria Sharapova of Russia in the women's singles final at 2pm.

Football: Team GB will play their quarter final against South Korea at the Millennium Stadium in Cardiff at 7.45pm as Britain attempts to win a first Olympic football medal since 1912.

Other Team GB matches on Saturday:

Men's Handball: Great Britain v Tunisia at 9.30am

Men's Volleyball: Great Britain v Poland at 11.30am

Women's Hockey: Great Britain v China 4pm

Men's Water Polo: Great Britain v Hungary 6.20pm

Men's Basketball: Great Britain v Australia 8pm

Where to Watch Live

You can follow all the action live on BBC One to 10pm BST; with breaks for BBC News between 1pm BST and 1.45pm BST and 6pm BST and 7pm BST). Coverage in that period will be available on BBC Two and will continue from 10pm BST to 10.40pm BST. Live coverage is also available to 11pm BST on BBC Three and BBC HD. Sky 3D will have coverage until 9.45pm BST and EuroSport to 9.15pm BST.

You can also follow all the action live, via text updates, on the official Web site for the 2012 London Olympics and also via a special BBC video player.