2016 Olympics, track and field results: Allyson Felix wins 6th

The men's and women's teams won gold in the 4x400, plus Matthew Centrowitz won the first gold for the US since 1908 in the 1500 meters.

Allyson Felix wins fifth Olympic gold medal as U.S. women win 4

14) Allyson Felix is now the most decorated woman in Olympic track

Allyson Felix shifts into high gear to win the women’s 400

Allyson Felix Biography, Olympic Medals, Records and Age

Allyson Felix, Biography, Medals, TED Talk, & Facts

Tori Bowie wins US 200m title as Allyson Felix's Rio double dreams

4 Inspiring Female Athletes Competing in the Tokyo Olympics

Olympics track and field results: August 20

2016 U.S. Olympic track, field trials: Felix and Tarmoh - Sports