A packed Olympic stadium awaits the face of the Games as Jessica Ennis prepares to run for gold.

The hot favourite is hoping a stellar performance in the final round of the two-day heptathlon will see her crowned Olympic champion at her first ever athletics contest in London.

A sea of flag-waving fans joined royalty, politicians and organisers alike as a capacity 80,000 crowd took their seats hoping to see a golden end to the day for Britain.

The Duke and Duchess of Cambridge joined Prime Minister David Cameron and Olympics supremo Lord Coe for the second evening of action in the stadium.

William, wearing a red cap, and Kate, in navy blue, have been strong supporters of the Games and are expected to show fervent support for the 26-year-old from Sheffield.

She has racked up a 188-point lead, setting her up nicely for tonight's 800m run.

Earlier, in what were widely expected to be two of the toughest rounds of the contest for Ennis, Britain's golden girl put in a 6.48m long jump, making her just one of two athletes to earn more than 1,000 points in the sandpit.

Ennis went on to throw a personal best of 47.49m in the javelin as her success continued.

It came after she built up a 184 point-lead on a phenomenal first day of action in the stadium on Friday, setting a British record in the 100m hurdles, a personal best in the 200m, and a clearance of 1.86m in the high jump.