Last update on.From section AthleticsNorway's Karsten Warsholm ran 46.70 seconds in setting a new 400m hurdles men's world record. He did this in front of his Norwegian fans at the Diamond League meeting.Warholm beat Kevin Young, 1992 Olympic champion in track and field, who set a record of 46.78 seconds. This is the longest-standing record for men's track.25-year-old Alison dos Santos was the world champion twice, finishing ahead of Yasmani Copello (47.38) and Yasmani Dos Santos (48.86).Eilish McColgan of Britain broke Paula Radcliffe’s 17-year-old British record in the women's 5,000m.McColgan will be competing at her third Olympic Games in this summer's 14 minutes 28.55secs, beating Radcliffe's previous time of 14:29.11.The Scot, aged 30, came in fourth place behind Hellen Obiri (1:26.38), Fantu Worksu (14;26.80), and Margaret Chelimo Kipkemboi (1:28.24)."This was just the perfect moment"Warholm will be competing against Abderrahman Samba from Qatar and America's Rai Benjamin as the favourites to win the Olympic title in Tokyo."This was just the right moment, everybody's talking about this record world record that has been standing for many, countless years - it's actually older than me actually."I knew it was there in me, but it was very special to do it. It's an incredible moment.Warholm's record was set just days after Sydney McLaughlin, 21, of America, broke the 400m hurdles world record by setting a time in 51.90 seconds at the US Olympic Athletics Trials in Oregon.Marie-Josee Ta Lou, an Ivorian sprinter, beat Daryll Neita of Britain in the 100m. She ran a season-best 10.91 which was enough to defeat the second-fastest British woman in history's 11.06.American Kate Grace overcame a disappointing seventh place finish at the US Olympic trials last week to record a personal best time of 1:57.60, and win 800m in dominating fashion.This was enough time to beat Halimah Nakaayi (1.58.70) in the second place.Andre de Grasse (20.09), Canada's fastest man, won the men's 200m race ahead of Aaron Brown.Malaika Mihambo, the European and World champion in long jump, won the women's event with 6.83m. She was joined by Britain's Jazmin Seeyers (6.54m) to take third and Abigail Irozuru (6.35m) to take sixth.Stewart McSweyn ran 3:48.37 in the Svein Arne Hansen Dream Mile to set a new Australian record.