Shelly Ann Fraser-Pryce is on top of the world and Noah Lyles is safely through to the 200m semi-finals - but in second place.
The best in the world lit up Doha on Day 3, Sunday 29th September.
In the triple jump Christian Taylor completed a golden hat-trick and Anzhelika Sidarova touched the sky in the pole vault competition, with the hugely entertaining Sandi Morris taking silver.
Scroll down for all the results and highlights from another unforgettable day at Doha 2019.
27 Sep - 6 Oct 2019
2019 IAAF World Championships - Doha
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All times below are local time in Doha, Qatar (UTC+3).
And so it is, the Chinese walkers tore away from the pack and set a pace that no-one else could live with.
Rio 2016 Olympic champion Liu Hong wins gold in 1:32.53, Qieyang Shenjie is second and Yang Liujing goes home with bronze, big disappointment for Yang Jiayu who saw a red card towards the end of the race.
Less than a year from Tokyo 2020 Hong looks a red hot favourite to defend her crown at the Japan Olympics.
At the halfway mark in the walking race it looks like it's going to be a Chinese clean sweep: Liu, Yang Liujing, Qieyang and Yang Jiayu lead the way, Ecuador's Morejon is staying within distance.
Olympic Channel caught up with Jamaica's 100m champ and she told us how her son Zion motivates her to keep being the best.
"My son Zyon has definitely been my source of strength and my inspiration and I continue to work hard for him and together we have definitely defied logic." - Shelly Ann Fraser-Pryce
"Coming back from having a baby, at 32, it's definitely different, but I'm happy that I had that experience and that it made me tougher and stronger as an athlete."
The final event of Day 3 is the women's 20k walking race, there's a big pack staying tight at the front of the race led currently by London 2012 Olympic silver medallist Qieyang Shenjie, Turkish teen Meryem Bekmez, Ecuadorian break-out star Glenda Morejon, and defending champion Yang Jiayu.
But it's early days yet, plenty of plot twists left in this one.
Fraser-Pryce stamped her class all over that 100m final, winning her ninth world championships medal, proving that she's still a force to be reckoned with before Tokyo 2020.
"I had no sleep last night. I could not sleep. The last time I was at a major championships was in 2016, and that feeling of 'Oh my God, I need to go to bed', it was not happening."
"But I'm glad I came out here and for me, it was just experience, knowing that some days are going to be good but it's the mental toughness that will be able to get you through and I was able to come away with a victory."
"Zyon and my husband, my family have been my strength. When everybody else doubted, they never did." - Shelly Ann Fraser-Pryce
"Zyon and my husband, my family have been my strength. When everybody else doubted, they never did."
"And for me, having my son and coming back and performing the way I did, it's just hoping that I can give inspiration to all the women who are thinking about starting a family or currently starting a family and wondering if they can come back. You can do anything. It's about who you are and why you started in the first place."
The start, the drive phase, the top speed, the finish, Jamaica's sprint queen has it all, such power.
And that's a silver medal rich with history for Dina Asher-Smith: A first British 100m medal, a new British record - 10.83, the first GB woman to make a 100m final.
There's so much more to come from Asher-Smith.
Marie-Josee Ta Lou (10.90) held off Elaine Thompson (10.93) to earn bronze, no mean feat.
They're on the line, we're set...
Can anyone beat Fraser-Pryce?
Shelly Ann Fraser-Pryce!
10.71s - the Jamaican's fourth world title at 32 years of age.
That's three gold medals in a row for Christian Taylor, can he repeat that at Tokyo 2020?
The London 2012 and Rio 2016 champion could make it a historic three-in-a-row in Tokyo?
If anyone can, Taylor can.
After a slow start from three-in-a-row hopeful Christian Taylor he's hit his stride, two no-jumps in the first two rounds saw fellow American Will Claye take the lead but Taylor comes roaring back!
And it's gold for Taylor, another title for the USA!
17.92m is too good, too far for Claye.
Another silver medal for Claye who clears 17.74, and Hugues Fabrice Zango bags bronze.
Allyson Felix has already written her name among the greats in athletics history, and now she's moved beyond Usain Bolt to 12 medals, Bolt won 11 in his unforgettable career.
Felix is out in front, as usual.
Tokyo 2020 could be her greatest victory yet, one more Olympic medal would make her the most decorated woman in Olympic athletics history.
When Feliz is around, records fall.
A world class quartet brings it home for the U.S., they were untouchable.
That's a 12th world championship gold medal for Allyson Felix, another incredible achievement from the USA G.O.A.T.
Jamaica take second and Poland third ahead of Bahrain after a really exciting race, Poland's strategy took them to the podium, this is going to be an exciting addition at the Tokyo 2020 Olympics.
The United States has set the bar, their 3:09.34s is faster than their qualifying time which makes it a new world record.
Anzhelika Sidorova is the 2019 world champion!
Sidorova touches the sky on her third attempt at 4.95m, that's a gold medal winning jump after Sandi Morris had failed for the third time.
Morris was clapping along with the crowd and smiling as Sidorova went up, great sportsmanship from Morris who has entertained us all night.
6-time Olympic gold medallist Allyson Felix can win a 12th world championships medal here in the first ever 4x400m mixed relay at the World championships.
The USA are hot favourites, here's the line-up:
1. Wilbert LONDON
2. Allyson FELIX
3. Courtney OKOLO
4. Michael CHERRY
The pole vault final is sizzling.
Favourite Stepanidis is out, she knocked the bar on 4.90 and 4.95, bronze is the best she can hope for, her mark is currently 4.85.
Sandi Morris has been the all-shouting, all-clearing leader from early on in this final but the more calm and collected neutral athlete Sidorova has stayed right with her.
Both cleared 4.90 but both have failures each on 4.95!
We're heading for a jump-off here.
Donovan Brazier - favourite for gold in many eyes - let Canada's Marco Arop set the pace then powered past with 150m to go.
Heat 2 is Brazier's in 1:44.87.
Arop qualifies in second, Emmanuel Korir, left it late clocking 1:45.19, he won't make the final.
A bold strategy pays off for Puerto Rico's Wesley Vazquez in heat 1 who broke out on 500m and just did not stop accelerating, his 1:43.96 is fastest.
Kenyan Ferguson Cheruiyot Rotich left it late and pushed hard towards the line taking big desperate strides but he couldn't catch Vazquez.
Top two qualify and two fastest losers make it too.
Nigeria's Divine Oduduru made in through the 200m heats to make the semi-finals as one of the fastest 4th place finishers, after he was reinstated to run today (Scroll down for more).
Here's what he told Olympic Channel afterwards:
"I was so devastated. Angry. I was weeping. I was up all night thinking... Because I know so many of the fans back home thought that we decided that we don’t want to run, commenting, saying so many things.
We athletes are proud to put on our country’s colour to run.
No athlete is going to come to a competition like this and say I don’t want to run. We told the Federation right before the African Games that we shall be focusing on the 200m, because we already had a long season from indoor season, outdoor season.
So many don’t understand how long that season is for us collegiate athlete.
This is the biggest meet of my career, so I am not going to come here and joke. "
There are scorch marks on the track after Shelly Ann Fraser-Pryce.
The fastest mother on the planet has one goal tonight: gold.
That's the fastest time tonight: 10.81
And she eased up significantly too.
Championship record? World record?
Don't be surprised.
Dina Asher-Smith is in contention for a first ever British medal in the women's 100m, no doubt about that.
She's already made history by becoming the first British woman to mnake the final, winning the heat in 10.87.
That's's 2 hundredths of a second off her personal best.
Dina Asher-Smith may become the first British woman ever to make a 100m Worlds final here, she'll be expected to boss this heat and make it through.
And she storms it!
Another USA sprinter has pulled up with injury, English Gardner's world champs is over, she pounds the ground in frustration.
This is the first of three semi-final heats, the first two qualify here, and it's Ta Lou and Elaine Thompson first and second.
Big run from Ta Lou: 10.87
She looks lean and keen.
Thompson goes 11 even, she doesn't look at her best today, maybe not fully fit?
Sandi Morris screams over at 4.80m in the pole vault, the first one to do so, she's into first and she loves it!
What a roar!
But she isn't out front alone for long though, Anzhelika Sidarova clears 4.80 too.
It isn't just Lyles either, Shelly Ann Fraser-Pryce has gone all chameleon, yellow yesterday, rainbow cascade today, pink, purple, grey, white.
Elaine Thompson has joined the fun too, a sleek manga cartoon character pink for Thompson.
All the big names through comfortably, no big shocks in those heats.
Adam Gemili impressed, Noah Lyles sauntered through, Andre de Grasse looks good, Blake, Hughes, Guliyez, all solid - tomorrow's semi-finals will see them pick up the pace.
Lyles has that cool grey hair dye job again.
Casual from Lyles, seemed surprised by the burst from Canada's Brendan Rodney, accelerates to beat Rodney but doesn't see Trinidad's Jereem Richards to his right who wins the heat.
Lyles doesn't look like he cares all that much.
He's through to the semi-final, as is Nigeria's Oduduru as one of the fastest fourth place finishers, fastest loser just sounds a bit cruel doesn't it?
Final heat of the night, and it's all eyes on Noah Lyles.
He's got that grey hair dye on again, suits him, brushes eyebrows, fixes hair.
Ya, he's ready.
Gotta love Noah Lyles.
100m bronze medallist Andre de Grasse is in this heat, brimming with confidence.
Great to see him back.
First round canter for Andre, has a glance to his right at South Africa's Clarence Munyai but he takes top spot easily, Munyai second, Serhiy Smelyk qualifies in third.
It's a fraction of a molecule of a nanometre!
Canadian Aaron Brown is atoms ahead of Britain's Miguel Francis, Brown just leans at the line.
20.10 for Brown, 20.11 for Francis, Jamaica's Rasheed Dwyer clinches that qualifying spot.
Bednarek pulls up, looks like a hamstring, that means that Lyles is the only U.S. sprinter left.
No pressure Noah.
Solid run from Trinidad's Kyle Greaux, controlled won it early and eased up, clocking 20.19 with plenty in reserve.
Yancarlos Martinez and Reynier Mena grab the other two qualifiers.
Johan Blake finishes second to Ecuador's Alex Quinonez in Heat 3, that's a really good time too from the Ecuadorian: 20.08 seconds.
Blake clocks 20.23 and Alex Wilson claims the final automatic spot.
A controlled run from China's Xie Zhenye, GBR's Zharnel Hughes is coming off a disappointing 6th place finish in the 100m yesterday but that's a good run, he holds on to second.
"Tonight was just about qualifying," says Hughes afterwards, who didn't get much sleep last night, but ran that race wide awake.
South Africa's Anaso Jobodwana is third completing what most expected would be the top three from this heat.
The defending world champion is in this first heat: Turkey's Ramil Guliyev, and he looks good coming around that curve, but what a run from Adam Gemili!
A season's best 20.06 for the British sprinter who was disappointed with his 100m yesterday, failing to qualify for the final.
"A bit of redemption, because I let a lot of people down yesterday," he says after a determined run.
Guliyev goes 20.27 to clinch second and the final automatic qualifying spot goes to the Netherlands' Taymir Burnet.
Nigeria's recently reinstated Divine Oduduru is fourth in 20.40, he'll have to wait if that time gets him into the final.
This is how Sandy Morris celebrated qualifying for the final, what does she have in store if she wins?
She'll probably smash a burger and get the war wounds on ice like last time when she won the world indoors in Birmingham in 2018.
He's won two straight Olympic gold medals and two straight Worlds, can Christian Taylor make it a hat-trick tonight?
With three of the last four world championship gold medals in the swag bag, he's clear favourite.
The charismatic triple jumper is a lovable champ with a legion of fans, all of whom will be rooting for their hero tonight.
But he'll need to bring his A-Game with teammate Will Claye rocking up with a shock on his mind: He's already jumped 18+ metres this year.
Cuban Pedro Pablo Pichardo is another one to watch, he needed just one jump in qualifying, clearing 17.38m.
Lima 2019 Pan American champion Omar Craddock is there and thereabouts too, his 17.68m season's best makes him a contender.
Burkina Faso will have high hopes for their man Hugo Fabrice Zango who has jumped 17.58m this year.
Who can go beyond 18m and challenge the great Christian Taylor?
We're about to find out.
100m champ Christian Coleman has withdrawn from the 200m, citing 'soreness.'
“After you run a PR, you just take your body to somewhere you haven’t been, I was just kind of feeling just a little sore,” Coleman told NBC today after winning the 100m in 9.76 seconds yesterday.
“We just thought it was best to not go out here and try and push my body.”
Our first event of the evening is the pole vault which launches into action at 8:01pm.
Ms. Consistency Katerina Stefanidi is Rio 2016 gold and World 2017 champion and looks like she's dead set on defending both those titles here in Doha and at Tokyo 2020 next year.
The 29-year-old Greek vault hero cleared the automatic qualifying height of 4.60m on day one easily, but it won't be a walk in the park with 16 other challengers also making that mark and tonight's final.
The U.S. challenge is threefold, spearheaded by Jenn Suhr who jumped a skyscraping 4.91 early this season - the leading numbers so far this campaign.
Sandi Morris, Katie Nageotte are the other two U.S. challengers and Anzhelika Sidorova is another candidate capable of stunning the favourites in an always unpredicatable event.
Stoked? Amped? Hyped? All abuzz about it?
Take your pick
Here's what awaits us tonight:
Divine Oduduru has been reinstated to the run the 200m tonight.
The 22-year-old African sprinter came into the Worlds with a big reputation after winning the 2018 NCAA 200m and breaking the Nigerian record of 19.73, but yesterday was disqualified due to an apparent misunderstanding, or misreading of the rules.
He is considered Nigeria's greatest hope in the 200m event.
His 9.86s personal best in the 100m meant he was entered in the heats at the World Championships in both events before being withdrawn from the 100 to focus on the 200.
A misunderstanding meant that Oduduru was withdrawn after the final 100m confirmation, and that meant that he was disqualified from all the other events he was entered in.
After an appeal to the IAAF, Oduduru has been reinstated and will race in the 200m heats tonight, which start at 8:05pm local time in Doha.
Find out more about Nigeria's sprint sensation here:
We're live and expectant here in the Qatari capital.
Tonight there's going to be some serious fun.
Today starts with the 200m heats and you can catch Lyles in action, the U.S. track star is fully focused on this one after opting out of the 100m to put all his attention on the 200m.
Lyles loves running the 100m, and he's made a deal with his coach: If he becomes world champion in the 200m, coach will let him train for and compete in the 100m too.
So Doha 2019 is more than a world title for him, it's a ticket to race the 100m at Tokyo 2020.
It's the final track event of the evening and what a way to close the show.
Shelly Ann Fraser-Pryce put in the fastest heat going 10.81, but it's all about what you do in the final, expect these four to negotiate the semi-finals and challenge Pryce for all three podium places:
Christian Coleman was electric last night, who's going to step up in the women's showpiece event?
The big 800m news broke yesterday that Nijel Amos aggravated an injury in the warm-up leaving a big opportunity
Emmanuel Korir clocked the quickest men's 800m qualifying time in 1:45.16 and defending champ Pierre-Ambroise Bosse went through in second place in his heat.
Elliot Giles won the final 800m heat with a quick 1:45.53 too, defending champ Pierre-Ambroise Bosse came through in second behind Brandon McBride, and Donovan Brazier is definitely a contender in the absence of Amos.