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World Athletics to tighten regulations on shoe technology after Nike's Vaporfly helps records tumble, say sources-Sports News , Firstpost
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Brigid Kosgei and Ruth Chepngetich will follow in Eliud Kipchoge's footsteps by wearing controversial trainers in London Marathon | World of Women's Sport
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Tokyo Olympics 2020: Kenya's marathon runner Brigid Kosgei says she wants to achieve her best, win gold for country-Sports News , Firstpost
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Nike Vaporfly: Why shoe worn by Kipchoge, Kosgei in record runs faces ban - The Standard Entertainment
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