Last update on. From the section OlympicsTokyo Olympic Games on BBC Dates: 23 Jul-8 Aug Time in Tokyo: BST+8. Listen live on BBC TV, BBC iPlayer and BBC Red Button; Listen live on BBC Radio 5 Live, Sports Extra, and Sounds; Live text and video clips available on BBC Sport app and website.Laura Muir won a stunning silver medal after she broke the British record and finished behind Faith Kipyegon, the defending champion in the 1500m Olympic final in Tokyo.The 28-year old Scot, who had come close in a series of Olympic and world finals but failed to make the podium, rang the bell with Sifan Hassan and Kipyegon.Muir was able to keep up with the fast pace and grit her teeth straight down the back to pass a tired Hassan. She finished a comfortable second, Kipyegon clear.She beat Muir's 2016 British record of 3 minutes 54.50 seconds by a little over a minute.Muir's triumph was the culmination of a nearly-decade-long search for a major medal. She slumped down to the track after crossing the finish line.She said, "I've worked so much for so long," to BBC Sport."I have been fourth, fifth twice and sixth every year since 2015. With everything being postponed last year and not knowing what was happening, I won a silver!""The last 100m I didn't feel so scared that anyone was going to pass me. I would have to go to fourth. That last stretch was the hardest. I tried my best."After crossing the finish line, Muir fell to the tracks.Hassan's bronze award marks the conclusion of an unprecedented, extraordinary distance treble. It also includes the 5,000m in which she won gold and the 10,000m which will be the final on Saturday.Hassan, who admitted earlier this week she believed it was crazy to try to do a hat trick to beat Emil Zatopek at the 1952 Games in Helsinki, Czechoslovakia, said that it was "crazy".As the campaign's toll, which will see her covering more than 15 miles in just eight days, it never seemed likely that the Dutchwoman would avenge her pre-Games 1500m loss by Kipyegon at Monaco showed,Kipyegon (27 years old) is the third Olympic 1500m champion after Muir's compatriot Sebastian Coe (1980-1984) and Tatyana Kazankina of the Soviet Union (1976-1980).Rio's success is supported by Miller-UiboMiller-Uibo's success follows that of Steven Gardiner, his compatriot in the men's racingShaunae Miller - Uibo dispelled all doubts about her defense of her 400m title with an emphatic win.The 27-year old had placed eighth in the 200m final. He appeared to have suffered an injury in the semis for the longer distance.The neon pink strapping she wore on her right knee matched her unique hairstyle as she walked into the stadium was a match for her signature hair.The Bahamas' athlete was a dominant performer, winning the last bend and never faltering. Rio was won by her last-ditch dive. She was able to achieve a personal record of 48.36.Marileidy Paulino, Dominican Republic, was second. Allyson Felix, 35 years old, won her 10th Olympic gold from her 12th Olympic final.Jodie Williams from Great Britain, who ran a personal record 49.97 in semi-finals, was matched by that time for sixth.Joshua Cheptegei, Uganda, backed his 10,000m Silver with 5,000m Gold as he won the title from Mo Farah of Great Britain.He set a new world distance record last season, but he looked less convincing this year. With one lap left, he turned up the heat and no one could stop him. He stopped the clock at 12 :58.15.Canada's Mohammed Ahmed won bronze in the World Championships in Doha, 2019, and took silver with Paul Chelimo of the United States, who was second behind Farah, Rio.Andrew Butchart, Great Britain's 11th place finisher in 13:09.97Norway's Jakob Ingebrigtsen is the fastest man this year. He has chosen to concentrate on the 1500m, where the final will be held Saturday.