What a great start to the championships - another gold for Mo Farah, Brits Jessica Ennis-Hill and Katarina Johnson-Thompson hog the top two spots in the heptathlon, while we've had a glimpse of Usain Bolt and Justin Gatlin before the fireworks go off on Sunday. That's it from us today. Thanks, as always, for your contributions, please join us on Sunday if you can. Bye for now. 

Before we wrap up today's live text, I suppose we should tell you the results of our vote. How could we keep you on tenterhooks for so long? Cruel, I know. 

We asked: how many medals will Great Britain win at the World Championships in Beijing? The majority of you (38.3%) think Britain will win between four to six medals. It's certainly been a good start. 

That's the opening day done and dusted. Britain, thanks to Mo Farah, already have a gold medal in the bag and top the medal table, for what that's worth right now, but could there be another British gold tomorrow? 

Jessica Ennis-Hill and Katarina Johnson-Thompson will be vying for gold in what could be a brilliant conclusion to the heptathlon. 

Battle will commence in the long jump at 02:00 BST, but if you prefer to sleep during such hours, worry not because you could still catch the javelin (05:05 BST) and the 800m finale at 12:40 BST. It's a shame we have to wait. 

Brendan Foster
Olympic medallist and BBC athletics commentator

"The 5,000m will be difficult for Mo Farah, because there are heats to get through as well. Mo will hate the heats, because he's run 25 laps here, and when you have to run 12-and-a-half laps in a heat for the 5,000m, your body doesn't want to do that. It wants to save itself. And your body shuts down, so you feel more tired running the heats of a long-distance race, because all you do is qualify to run it again.

"The last time Mo did it, in London, he said he felt more tired in the heats of the 5,000m than he did in the final."

Image source, AFP

Paula Radcliffe
Women's marathon world record holder on BBC TV

"Geoffrey Kamworor really did take the race to Mo Farah. No man has ever won the world half-marathon, cross-country and 10,000m titles in the same year. Geoffrey Kamworor came really close tonight, but he just wasn't good enough.

"Having said that, maybe for his Kenyan compatriots in the 5,000m, Geoffrey has fatigued Mo more than we've seen in previous championships. What's going to be key now is how well can go away and recover for that."

Jo Pavey
European 10,000m champion on BBC TV

"What a fantastic run by Mo. There was nothing the field could do. Geoffrey Kamworor tried to force the pace, but Mo always looked relaxed."

The final 200m was gripping, Farah was pushed, but the Briton came through. If you missed it - why not watch it again. And again. And again. 

Michael Johnson
BBC Sport athletics expert & 400m world record holder

"Mo has delivered because of his confidence - and has proved he can win any sort of race, not just a slow one. When he started working with Alberto Salazar, they focused on his speed. You can see the results of that."

Daley Thompson
Two-time Olympic decathlon champion on BBC TV

"No matter what might have happened, Mo was in control. I think if he'd fallen over with 300m to go, he'd still have taken everybody. I hope that will kick-start the rest of the British team into thinking: 'We've got a chance of doing something as well.'"

Having been caught up in Mo Farah's fabulous victory, I've neglected to mention who won silver and bronze in the 10,000m. I'll address that now. Here we go: second was Kenya's Geoffrey Kamworor (27:01.76), while Paul Tanui (27:02.83) was third. Galen Rupp was fifth. 

Image source, BBC Sport

Jo Pavey
European 10,000m champion on BBC TV

"Mo stayed out of trouble. He wasn't fazed by the field pushing the pace. He conserved energy, and only pushed when he needed to. He looked comfortable. He was so professional afterwards - he's only focused on the next race. You can see the jovial Mo coming through. He showed how pleased he is with all the support he's had."

Image source, AFP

Farah dedicates his victory to his unborn child, and admits it has not been easy being at a championships without his family. (His wife has not traveled to Beijing as she is heavily pregnant.)

The Briton's next task is to win 5,000m gold and should he do so he will become the first man to complete a 5,000 and 10,000m double at consecutive World Championships. 

"I've got to recover, do everything that I can and hopefully get ready for the 5,000m," he says of next week's race. 

Image source, BBC Sport

Farah has finished his victory lap and is speaking to Phil Jones. 

"I knew the guys were going to do that, too many years now they've left it slow so they had to do it and it did happen," says the world champion. 

"It was a matter of digging in there and hopefully it didn't take it too much out of me. It's not easy running 27 minutes in this heat."

Image source, Getty Images

Brendan Foster
Olympic medallist and BBC athletics commentator

"Mo Farah stepped off this track seven years ago and nearly gave up distance running. Thank God he didn't. I can't wait for the 5,000m. That's greedy, really, isn't it?"

Nick Staddon: Threw everything at him, even trying to trim him, but he is the man! Absolute class from Mo Farah #mobot, external

Howard Horner: Farah is just so, so good. One of the great distance runners, and not done yet! #bbcathletics, external.

Lisa Campbell: Wow well done @Mo_Farah, external inspiring and gripping 10k - smashed it in the last few seconds!

Image source, AFP

Paula Radcliffe
Women's marathon world record holder on BBC TV

"The field threw everything at him, including nearly tripping him! But he just took it in his stride. He's in the shape of his life, and he knew that whatever they tried, they weren't good enough to beat him tonight."

Image source, Getty Images