Champions Rise in Paris: Laura Muir Breaks British Record, Yaroslava Mahuchikh Makes History.
Laura Muir Breaks British Record as World Records Fall in Paris At the Paris Diamond League, Laura Muir broke the British record in the 1500m, a race where her rival Faith Kipyegon shattered the world record. Meanwhile, Yaroslava Mahuchikh set a new high jump record, breaking a 37-year-old mark. Muir, 31, ran a time of