Josh Kerr smashed Steve Cram’s 39-year-old British record to claim victory in the mile race at the Diamond League meeting in Eugene, Oregon. The Scottish runner won a highly anticipated showdown with his Norwegian rival Jakob Ingebrigtsen thanks to a remarkable world-leading run of 3min 45.34sec.

Cram, who was commentating on the race for the BBC, had held the British record since 1985 with a time of 3:46.32.

The Olympic 1500m champion, Ingebrigtsen, who was stunned by Kerr in that event at last year’s world championships in Budapest, finished second, with the Britons Neil Gourley and Jake Wightman in fourth and fifth respectively.

Earlier, Keely Hodgkinson produced a dominant display to win the women’s 800m. The 22-year-old clocked a world-leading time of one minute 55.78 secs, while compatriot Jemma Reekie was third – behind Kenyan Mary Moraa – in a time of 1min 57.45sec.

Sha’Carri Richardson, the world champion won in her first women’s 100m of the Olympic year in a time of 10.83sec ahead of St Lucia’s Julien Alfred (10.93) and Dina Asher-Smith, whose time of 10.98 was a season best for the Briton.

Laura Muir continued preparations for this summer’s Olympics in Paris with fourth place in the women’s 1500m in a season’s best 3min 56.35sec. The Tokyo 2020 silver medallist said: “I want to be in the best shape I can for August, so it’s a step towards that to run 56 [seconds] in May. It’s very promising.”

Elsewhere, Kenya’s Beatrice Chebet set a new world record of 28min 54.14sec to win the women’s 10,000m. Chebet bested the previous record of 29.01.03 set by Ethiopia’s Letesenbet Gidey at FBK Stadium in the Netherlands on 8 June 2021.

Chebet finished ahead of Gudaf Tsegay of Ethiopia, who finished in 29min 5.92sec in cloudy and cool temperatures. Chebet started to pull away with three laps to go, then poured herself into the final lap. “My body was responding good and I felt strong,” she said. “I felt like I was very comfortable.”

It was her first 10,000m race since 2020, in Nairobi. Chebet, 24, won the silver medal at the 5,000m at the world championships at Hayward Field in 2022. She won the bronze in the event at the worlds last year.

The finish qualified her for her first Olympics this summer in Paris. She said she hopes to double in the 5,000m and 10,000m. “But my target is to run 5,000m first, then 10,000m comes second,” she said. “Because this is my first 10,000m outside the country to run, and I’m so happy to run 28, a world record.”

The Prefontaine Classic is the lone American stop on the international Diamond League series.