With that smart, powerful run, Farah becomes the first of our golden trio to retain his 2012 title.

It's not to be for Rutherford, whose run in major championships has come to an end: he'll leave Rio with a bronze in the long jump.

Jessica Ennis-Hill has a huge task ahead of her in the 800 metres, where she'll need to run close to her lifetime best to beat rising star Nafissatou Thiam to gold in the heptathlon.

But, at least, we know that Farah is on track to complete his historic double double, which has only been achieved once in the history of the Games.

I'm delighted, I'm sure you're delighted, and Paul Hayward, our Chief Sports Writer in Rio de Janeiro. has this to say:

'Not even a mid-race fall could stop Mo Farah winning the Olympic 10,000m gold again. Farah was on the floor in the race and on the ground again at the end, when the enormity of his achievement sent him tumbling to the track for a few moments of contemplation.

Farah is not just a British idol. The noise that greeted his victory showed him to be an athlete of world renown. Tripping over his own training partner, Galen Rupp, around the 4km mark added to the drama but took nothing from his determination to prevail here in Rio. Farah was smiling as he retuned to his feet. A thumbs-up said this was only a minor distraction.

Never have we seen him so fired up. Before the start Farah ran up the home straight pumping the crowd. But when the 34-strong field set off he cruised round in last position before moving up to join the race properly with 19 laps remaining.

As someone who left Somalia for a more comfortable life in England, and found fame through running, Farah can probably identify with the feelings of Cariocas, or Rio dwellers. But he had business to attend to here: the latest step in his quest to be remembered as the greatest distance runner since Viren, whose career was clouded by suspicions of blood doping.

From London to Rio, over a four-year span, Farah has been imperious.'

You can read the rest here.

And - with that, it's adieu from me. What a day for British sport. Fingers crossed our heptathletes can deliver in ten minutes' time, and - in a few days - that Farah, a source of tremendous national pride regardless of his 5,000 result, can do the double.