The 20-year-old Kessler won the first road mile world title as Diribe Welteji upset Faith Kipyegon in the women's mile. Peres Jepchirchir won a record-tying 3rd title in the women's half.
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Portaferry's Ciara Mageean, who spent a busy season breaking Irish records, returned to the Ards Peninsula for the first time since her fourth place finish in the World Championships.