Britain’s Mo Farah survived a last-lap trip to retain his 10,000 metres world title in some style yesterday, extending his dominance of men’s distance running at major championships.

Almost tripped up by Kenya’s Geoffrey Kamworor as he took the first bend after the bell, the 32-year-old regained his balance and his composure to storm down the final straight and finish in 27 minutes 01.13 seconds.

Farah, who has endured a difficult few months after his coach was the subject of doping allegations, raised his arms and roared in delight as he crossed the line.

Kamworor was outpaced over the final 100 metres but finished second in 27.01.76 to claim silver, while his compatriot Paul Tanui was a distant third in 24.32.34.

A trio of Kenyans formed an imposing barrier at the front of the field for most of the race and the last-lap clash was only the worst of several points of contact with the Briton after he came through the pack to challenge them in the latter stages.

“So many times I nearly got tripped, nearly went down but thank God I did not go down,” Farah told the BBC in a trackside interview.

The reigning Olympic and world 5,000 and 10,000 metres champion has now won six straight distance titles at major championships going back to his second place in the longer event at the 2011 World Championships in Daegu.

His season has been overshadowed by allegations in a BBC investigation linking his coach Alberto Salazar with doping.

Salazar, also the coach of American Galen Rupp who finished in fifth position yesterday, denies any wrongdoing.

Farah will attempt to become the first man to do the 5,000-10,000 double at consecutive World Championships next Saturday.

Earlier, German Christina Schwanitz confirmed her status as the form shot-putter of 2015 by winning her first championship gold medal with a throw of 20.37 metres.

Eritrean teenager Ghirmay Ghebreselassie (picture) became the youngest ever marathon world champion when he stunned a strong field to win the first title in Beijing yesterday. The 19-year-old eased clear of the field over the final six kilometres and crossed the line in 2.12.27 to claim a first World Championships gold medal for his country. Ethiopian Yemane Tsegay finished 40 seconds behind while Uganda’s Solomon Mutai claimed bronze in 2.13.29.

The 29-year-old disappointed the home crowd at the Bird’s Nest stadium by edging Gong Lijao into second place with her third throw, leaving the Chinese to take silver on the back of her third effort of 20.30m.

American Michelle Carter threw 19.76m to beat Anita Marton, who bettered Hungary’s national record with her best attempt of 19.48m, and take the bronze medal.

New Zealander Valerie Adams, who won gold at the last four World Championships, elected to skip the meeting this time so she could undergo shoulder and elbow surgeries with an eye on her Olympic title defence in Rio de Janeiro next year.

Bolt-Gatlin duel

Usain Bolt and Justin Gatlin moved a step closer to their highly anticipated showdown when both eased through the 100 metres heats.

American Gatlin underlined his dominance of the sprints this season by storming to victory in the sixth heat in 9.83 seconds, the best time of the day.

World record holder Bolt, whose season has been disrupted by joint problems, responded by winning the final heat in 9.96, a time which ranked fifth behind Gatlin, American Trayvon Bromell (9.91), France’s Jimmy Vicaut (9.92) and Asafa Powell (9.95).

Jamaica’s Olympic and world champion knows that fast times in heats do not win gold medals, however, and was satisfied with going under 10 seconds to reach the semi-finals, which take place along with the final today.

“It was okay,” Bolt, 29, said.

“The execution was okay too. I still have some adjustments, just have to concentrate on my technique now.”