World Athletics: GB win silver and bronze in 4x400m relays, plus Semenya wins gold – as it happened

I leave you with a Hero the Hedgehog highlights reel. Bye! Again!

As Bolt walks around the track, waving his final farewells, it seems an opportune time for me, too, to head for the exit. Don’t worry about the massive framed thing, it’s OK. Bye!

Meanwhile Usain Bolt is back on the track, collecting some kind of enormous framed thing.

Indeed we have. We’ve had to rely on cramps, muscle-pulls and simple athletic excellence for our drama.

The top of the final medal table looks like this:

1. United States (10 golds, 11 silvers, 9 bronzes)
2. Kenya (5/2/4)
3. South Africa (3/1/2)
4. France (3/0/2)
5. China (2/3/2)
6. Great Britain & Northern Ireland (2/3/1)
7. Ethiopia (2/3/0)
8. Poland (2/2/4)
9. Authorised Neutral Athletes (1/5/0)
10. Germany (1/2/2)

Interesting statistic alert.

Lalonde Gordon brilliantly overhauls Fred Kerley in the final metres to steal gold – the Americans weren’t really that bad – while there were a few seconds when it looked like Martyn Rooney might catch up with them both. But then he didn’t.

It’s US, T&T and Britain for the medals, well clear of Spain!

Not a great first leg for the British, but Dwayne Cowan is finishing his second leg in third, with Trinidad & Tobago second and the US first.

The final event of the championships is under way!

Borlée latest: Robin Vanderbemden leads out the Belgians, with Borlées second, third and fourth. They’re quite the family.

Matt Hudson-Smith, who was reported to have walked out on the relay team yesterday and who Martyn Rooney, who runs the anchor leg, said “needs to get his head right”, will lead the British off tonight.

“This great Britain team has a chance for gold,” says Michael Johnson, who thinks the US team is “very weak” and Belgium are “not as strong as they have been in the past”.

And then there was one. Well, one race, and 32 athletes. The men’s 4x400m relay is but a few moments away.

Meanwhile, Jamaica reacts to their latest relay drama:

Mutaz Barshim, the high-jump gold-medalist, seems pleased.

It was an amazing night. It’s impossible to forget this night. I love the pressure. That’s when I perform the best, when I’m under pressure. I expect for myself much more than everybody, so for me it’s just more motivation. It’s no pressure, it’s just motivation.

So lightning strikes twice for Jamaica, as injury stops them midway through another relay. Remarkable.

It’s Emily Diamond v Justyna Swiety for silver, and Diamond goes out hard!

Eilidh Doyle is running a fine third leg, and it looks like it’s between Britain and Poland for bronze.

America are way out clear, with Britain and Poland second and third as the third leg begins.

Jamaica won’t finish! Anneisha McLaughlin has pulled up with a muscle strain!

Chrisann Gordon is running an excellent first leg for Jamaica, but Zoey Clark has been less impressive for Britain.

Can anyone stop the US? Or, more realistically, who will finish second? We’re about to find out!

So the field events are now officially over, and just two more issues remain to be settled on the track. Next up: the women’s 4x400m relay, another potential medal for Britain, and also no end of baton-dropping, handover-failing dramatic potential.

“A cracking 1500m race, with the Kenyans ruling once again, but really there’s a bit of dust in my eye as we say goodbye to Brendan Foster,” writes Guy Hornsby. “What a legend he was on the track, a jovial, but steely Gateshead man who was even better on the mic. I can’t think of another athletics commentator I loved listening to, even David Coleman, and I’ll always hear “Rooosa Mooota” when I remember him. Fitting he hands over to another champion, we’re in good hands with Steve Cram.” Well said sir.

Majd Ghazal’s emotional, coach-and-anyone-else-who-was-interested-hugging reaction to sealing bronze was very special indeed. Clearing 2.29m was enough to give him the medal; the cleared the same height in qualification, when six people, including both the other medalists and also Robbie Grabarz, cleared 2.31.

Mutaz Barshim has failed three times at 2.40m, so the high jump competition is thus over.

Britwatch: For the second time this evening, the Briton finished last. Chris O’Hare was not at his best: third after one lap, fifth after two, and last after 1200m and 1500m.

Ingebrigtsen seemed to dive – literally dive – in front of Mechaal as they approached the finish, so there might be some kind of afters there.

Filip Ingebrigtsen of Norway is in with a shout here, with half a lap to go!

Barshim, meanwhile, fails to clear 2.40m at the first attempt. So he is human.

1500m latest: There are Kenyans in first, second and third after two laps, and they’re pulling clear! Britain’s Chris O’Hare is fourth.

Starter’s pistol alert! The men’s 1500m final is on!

Brendan Foster, the BBC athletics commentator, is about to hang up his microphone. He will retire after the men’s 1500m final, which is about to happen.

Lysenko does not clear it, or his next attempt either. Barshim has been absolutely imperious here, and no one can live with him.

Barshim clears 2.35m at the first attempt! And Lysenko has to ace his next jump if he’s to have a reasonable chance of victory!

High jump latest: So it is between Mutaz Barshim and Danil Lysenko for gold, with the bar moving up to 2.35m. Barshim, who has flown over every previous height at the first attempt, is in the lead as things stand.

High jump latest: two more failures at 2.32m mean that Edgar Rivera, who failed twice at 2.29m, comes fourth, and Majd Ghazal, who failed just the once at 2.29m, takes bronze for Syria!

High jump latest: Only two men have cleared 2.32, with Ghazal and Rivera both preparing for their final attempts. Bondarenko and Przybylko are out.

Discus latest: Into the final round, and just the top three to throw. Dani Stevens goes next, with silver within her grasp. And she throws her best throw of a night! And a massive personal best! It’s 69.64m, and can Mélina Robert-Michon do anything about it?

Lynsey Sharp faded in the second lap and finished last. Semenya, though, was in a league of her own, and won in a personal best time of 1:55.16.

Halfway through, Francine Niyonsaba of Burundi leads the field, but everyone’s very close. Lynsey Sharp is in fourth!

The women’s 800m is under way!

Discus latest: For four rounds every one of Sandra Perkovic’s throws was longer than any one of anyone else’s by at least 2.99m. But she’s just fouled her fifth attempt, so she’s not perfect.

The women’s 800m finalists are on the track and getting ready to race. “For a few days I’ve been bothered by the thought: what is the point of the bell in the 800 metres?” wonders Justin Horton. “Nobody can be in any doubt what lap they are on. You might as well ring a bell to start a 400 metre race, as ring one after the first lap of a two-lap race. Is there actually any purpose being served here?” It is a faintly comic bell, to be sure, but might be necessary: as we saw in the steeplechase athletes can be a forgetful lot.

I have, I fear, been insufficiently excited about Hellen Obiri’s 5,000m gold. Just an astonishing turn of speed in the final lap left the just-not-quite-as-brilliant Almaz Ayana trailing, and was jaw-droppingly impressive. She ran the last lap in 60sec. Whoosh.

Discus latest: Australia’s Dani Stevens has just pulled out a season’s-best throw of 66.82 to take over in second place. They’re into the fifth round of throws, so it is very much the business end of the competition.

Oooh, there’s a sixth man still in the high-jump hunt: Ukraine’s Bohdan Bondarenko passed at 2.29m, so hasn’t eliminated himself yet. He’s just failed his first attempt at 3.32m, though.

The bar is set to 2.32m, and Barshim sails over at the first attempt! But he might not have this all his own way: so, too, does Danil Lysenko!