Shelly-Ann Fraser-Pryce celebrates after winning gold in the women's 100 meters final in Beijing.
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The two-time Olympic champion beat Dutch runner Dafne Schippers (left) while Jamaica teammate Veronica Campbell-Brown (right) was fourth.
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It was Fraser-Pryce's third world title, after triumphs over the distance in 2009 and 2013.
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American runner Tori Bowie (left) won bronze. Here she looks at the video screen after the race along with Kelly-Ann Baptiste of Trinidad and Tobago, who was sixth.
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Kenya's Vivian Cheruiyot won her second 10,000 meters title, adding to her 2011 success as she beat Ethiopia's Gelete Burka.
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Emily Infeld was delighted after snatching bronze on the line from fellow American Molly Huddle in the 10,000m race.
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Colombia's Caterine Ibarguen successfully defended her triple-jump title.
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Ezekiel Kemboi celebrates his fourth successive men's 3,000m steeplechase title, as Kenyan runners took the first four places.
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Canada's Shawnacy Barber caused an upset in the men's pole vault final. The 21-year-old won on countback from Germany's defending champion Raphael Holzdeppe.