The 21-year-old took the race from the start and produced a perfectly-paced race to cross the line in 48.35 seconds.

The former decathlete’s gold medal is Norway’s first world track gold since Ingrid Kristiansen in 1987.

Turkey’s Tasmani Capello finished strong to take silver, with USA’s Kerron Clement settling for bronze.

Earlier this year, Warholm impressed when he set a personal best of 48.25 to win the Bislett Games in front of a home Norwegian crowd, but no one expected a World Championships gold medal to come this year.

Watch his reaction below.

In the 200m semi-finals, Botswana’s Isaac Makwala and South Africa’s Wayde van Niekerk both qualified for the final.

Earlier in the evening, Makwala ran a solo time trial to make the final, after he was barred from Monday’s heats.

Van Niekerk,who won the 400m gold on Tuesday, only made it through as a fastest loser after finishing third in his semi-final, but the 400m world record holder won’t mind how he made it through, as long as he adds the 200m gold to his 400m title.

In the first semi-final, Britain’s Nethaneel Mitchell-Blake finished third in 20.19 to qualify, while team-mates Danny Talbot and Zharnel Hughes failed to make it through.

With 20 metres to go Shaunae Miller-Uibo was leading the women’s 400m final, before suffering an apparent leg injury, which forced her to seize up. Seeing the opportunity, Phyllis Francis pounced, and powered home to win the gold in 49.92, a personal best for the American athlete.

Bahrain’s Salwa Eid Naser took silver in 50.06, another national record, with USA’s Allyson Felix taking bronze in 50.08.

The post Former decathlete Karsten Warholm wins 400m hurdles gold appeared first on Fast Running.

In the penultimate Diamond League meeting before the World Championships in London, 800m star Semenya will step down to 400m Olympic champion, Miller-Uibo’s signature event.

South Africa’s Semenya, has limited race experience over 400m, and is yet to break the 50 seconds mark.

The race will not just be about the Olympic champions, and US stars Quanera Hayes and Natasha Hastings, and Jamaica’s Shericka Jackson, will want to put in strong performances in Rabat.

In the women’s 100m, double Olympic champion Elaine Thompson, will aim to continue her impressive form this year, ahead of next month’s World Championships.

At the recent Anniversary Games in London, Thompson, showed it really doesn’t matter what footwear she has on. To protect an injury, the Jamaican star ran in flats instead of spikes, and still dominated the 100m field to take the win.

Also racing in the women’s 100m, is British sprinter Daryll Neita.

In the men’s 200m Canada’s triple Olympic medallist Andre De Grasse will face Great Britian’s Zharnel Hughes, and USA’s Fred Kerley and Ameer Webb.

Other British athletes making their way to the 10th Diamond League meeting of the year, include CJ Utah and Nethaneel Mitchell-Blake in the 100m. Robbie Grabarz in the high jump, World Championship bound, Laura Weightman in the 1500m, and Eilidh Doyle in the 400m hurdles.

There are no Irish athletes travelling to Rabat for the IAAF Diamond League meeting.

The post 400m and 800m Olympic champions, to battle over one lap in Rabat appeared first on Fast Running.