How close was that finish?!

Jamaica's Tajay Gayle has gone and jumped a PB first up. That's the way to do it!

He's gone 8.46m to take the early lead.

It was Cuban cigar and slippers time for Juan Miguel Echevarria in qualifying – the world indoor champion and world leader (5th to jump) sailed out to 8.40m with his only attempt. That’s further than Olympic champion Jeff Henderson (8th to jump) and reigning world champion Luvo Manyonga (9thto jump) have managed this season.

Saj Chowdhury
BBC Sport in Doha

Once again it's quite a sparse crowd inside the Khalifa Stadium, but there is quite a din from the opposite side of the stadium to me from a large Ethiopian contingent.

They will continue to be full of voice when their trio of Netsanet Gudeta, Senbere Teferi and Letesenbet Gidey go in the 10,000m final (19:10 BST)

Image source, BBC Sport

Image source, .

A legend of this track and field malarkey speaks to BBC Sport as Mike Powell explains the landscape of men's long jumping ahead of tonight's final.

Powell set a world record of 8.95m in 1991 which still stands to this day.

"Juan Miguel Echevarria is the only one trying to jump out there. He has got me watching. It's been 28 years, I feel like it's mine," he says.

"It takes focus and complete confidence. It was hard for me competing against Carl Lewis. Just be focused, do what you do in practice and do it in front of people.

"I think Echevarria might get an 8.70m tonight. Not too close to me!"

Cuba's Echevarria is about to get his medal tilt underway and we will keep you updated. Who knows, maybe the 28-year record may come under attack.

Image source, Reuters

Right now we have the women's hammer event in flow.

American DeAnna Price is leading with a throw to go thanks to a 77.54m effort.

Whoever wins will enjoy an unknown glory as for the first time, Poland's Anita Wlodarczyk is not here to dominate.

Wlodarczyk won Olympic gold in 2012 and 2016 and has won the last three World Championships. Surgery has sidelined her, offering glory to another.

Right now, there are a lot of screams coming from the cage as these women send their missile into the night sky with gusto.

Great Britain's Dina-Asher Smith looked good in clocking 10.96 to win through the women's 100m heats. Her team-mate Daryll Neita is also through.

Shelly-Ann Fraser Pryce clocked 10.80 in the 100m, the most eye-catching display in women's competition on Saturday.

Norway's Karsten Warholm is expected to get the job done in the men's 400m hurdles and he obliged in his semi-final, clocking 48.28.

American Christian Coleman was the only sprinter to clock under 10 seconds in the 100m semi-finals, with the final to come later. Great Britain saw Zharnel Hughes get over the line with a 10.05 clocking to make the showpiece final.

More on what is coming up next...

Michael Johnson
Four-time Olympic gold medallist athlete on BBC TV

We are in a region where athletics is not that popular. I think the idea was to bring the event to the region to improve that, which is a flawed concept.

As for the mixed relay, I'm not trying to be negative, but what problem does it address? I've been to the world relays and the mixed event there is great - that's the place for it.

I would Saj.... I would...

Saj Chowdhury
BBC Sport in Doha

Would anybody like to see a mixed relay featuring a man, woman, toddler and dog?

No?

OK.

The final will take place at 20:35 BST on Sunday and Great Britain will get a shot at a medal.

Image source, Getty Images

Michael Johnson
Four-time Olympic gold medallist athlete on BBC TV

People will say it's innovation but that is not a good answer for why you do this. Innovation is good to improve on things and many say there are already too many events in this sport so I wonder if it's a good idea.

The mixed relay is a fascinating watch. A Japanese male athlete just took the baton on leg three and absolutely flew past a field of women, opening up a 30m gap. He hands to a 17-year-old female athlete now though and the men instantly cut the gap and whizz past.

Saki Takashima of Japan is overtaken by the entire field and it's Poland who take the heat from Brazil and India. A time of 3:15.47 for the winners. Great Britain will qualify as a fastest loser from heat one but the tactics in this event look key as to how teams use their two female and two male athletes.

GB's Zoey Clarke: "It was really fun to do and nerve wracking with the new style. We play the waiting game now but I'm proud of the race we ran."

Emily Diamond: "None of us have done a mixed before but it was good fun. Hopefully it gets us through to the final tomorrow."

GB's Rabah Yousif: "The new combination was good. It was quite good handing over from a male to a female,"

Martyn Rooney: "It's very tough when you are getting chased. Those guys ran fantastucally well. I just want to say thanks to Zoe and Emily, whose enthusiasm has been infectious."

Steve Cram is telling BBC Sport viewers that he can't see any team running quicker than the fastest-loser time Great Britain have set. We wait to see as the second and final heat gets ready to roll...

Shelayna Oskan-Clarke: "I actually am speechless because I envisaged myself making that final. It obviously isn’t easy to navigate through the rounds but I believe I can be in the final.

"I was reminding myself of all the things I should do to get into the final and it just didn’t happen. I do [have it in me] but that doesn’t mean it is gong to come again. It’s not easy."

DeAnna Price of the US has extended her lead, chucking out to 77.54m.

That's 80% of the height of the Statue of Liberty.