No fairytale ending but magical memories as Allyson Felix says farewell

• American takes world championships bronze in her final race
• Dominican Republic stun the hosts in mixed 4x400m relay

Not all fairytales have the perfect ending. In the final race of a career spanning two decades, with more medals than anyone else in athletics history, Allyson Felix left Hayward's Field with just a bronze in the mixed 4x400m relay as the United States were stunned by the Dominican Republic.

For a few magical moments, as Felix stormed to a 20m lead on the second leg and the crowd exploded with noise and love, she appeared to be rolling back the years. I felt the love, and I felt joy running," she said when asked about it. And so I feel really proud tonight, and fulfilled."