it's not to be for Abigail Irozuru - she tries to make her last jump a big 'un but she oversteps and it'll go down as a foul.

She'll finish in seventh place overall. Good signs for the future.

There's no Martyn Rooney on the anchor leg for the Brits tonight.

It's Lee Thompson who gets the call with Toby Harries replacing Rooney in the line-up.

Yomif Kejelcha went too early with that injection of pace. He was no match for Cheptegei in the end.

The Ugandan looked barely out of breath!

Joshua Cheptegei becomes Uganda's first track world champion.

Kejelcha has kicked on MASSIVELY but Cheptegei is with him step for step.

The bell sounds and Kejelcha makes his move.

The medals are going to be between these three. But who will get which colour?

Two laps to go and Cheptegei is leading.

Kipruto in second and Yomif Kejelcha third at the moment.

A slight improvement from Abigail Irozuru, clocking 6.50m on her fifth jump, but it's not enough to move her up from seventh place.

Ukraine's Maryna Bekh-Romanchuk has just jumped 6.92m to catapult herself into the silver medal position, but no-one is going to catch this effort from Mihambo. Astonishing.

(Mihambo's fifth attempt, incidentally, was 7.09m. And she looked annoyed that it wasn't further.)

Kipruto and Cheptegei open up some distance to third place but they are quickly reeled back in.

They still look so fresh. HOW?!

Through 9km in 24:20.79. One to go.

Through 8km, Cheptegei takes over at the front but the Kenyans are back, world junior champion Kipruto determined to push him hard.

Mo Ahmed, bronze medallist in the 5,000m, falls back. He's struggling to keep up with this injection in pace.

Kipruto leads through 8km in 21:40.16.

The lead is yo-yo-ing between the two Kenyans and Canada's Mohammed Ahmed has surged forward to tuck in behind them.

Cheptegei falls down the pack a touch but he realises he needs to push on, and does so, moving back into third as Kwemoi drops back.

Through 6km, Joshua Cheptegei is back at the front, with Kwemoi and Kipruto dropping just behind but they're not behind for long.

They allow Cheptegei to lead for a couple of laps before moving ahead once again.

Steve Cram
BBC Sport athletics commentator in Doha

There's water on the back straight but the athletes are ignoring it.

Put the table closer!

Rhonex Kipruto leads the field through 5km in 13:33.20.

Nineteen-year-old Kipruto remains on Cheptegui's shoulder, driving him on, and as the 4km mark is passed, he's out at the front again.

He and compatriot Kwemoi are now setting the pace side-by-side as they look to open a gap.

Kipruto is not happy with the pace though and takes over at the front, and he's really put the burners on to burst ahead.

Ethiopia's Hagos Gebrhiwet, who moved up through the pack, has reeled him back in though and allows Cheptegui to take over.

Image source, Reuters

Another 6.59m for Abigail Irozuru from her fourth jump.

It's going to take something big to get up into medal contention. Two jumps to go...

2km down and it's still Mande setting the pace, going through that marker in 5:27.24.

Cheptegei remains just a stride or so behind him with Kipruto and Kwemoi on their heels.

Mande is still setting the pace but fellow Ugandan Cheptegei and Rhonex Kipruto have also moved up.

They move through 1km in 2:43.67.