Keely Hodgkinson, Jemma Reekie and Alex Bell sail through semi-finals as Andre De Grasse and Juan Miguel Echevarria also impress in qualifying on Saturday night in Tokyo
GB quartet set national record in new Olympic event on an otherwise frustrating Friday evening in Tokyo where Eilish McColgan, Jess Judd, Amy-Eloise Markovc and Sophie McKinna fail to progress
British sprinter cruises through 100m heat as team-mate Daryll Neita runs first-ever sub-11, while Jemma Reekie, Keely Hodgkinson and Alex Bell qualify for the 800m semi-finals
Athing Mu, Faith Kipyegon, Gudaf Tsegay, Sifan Hassan and Beatrice Chepkoech highlight a superb women's endurance line-up with Laura Muir and Eilish McColgan among the British stars
Muir stuns world-class 800m field as Kenyan Faith Kipyegon wins thrilling 1500m battle with Sifan Hassan and Lizzie Bird sets British steeplechase record as female endurance athletes excel on the French Riviera
Olympic squad sees sprinter tackling 100m, 200m and 4x100m while Laura Muir will run middle-distance double and Katarina Johnson-Thompson is picked subject to fitness
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