Allyson Felix Advances to the Semifinals in the 400 Meters. - The

Michael Norman Wins U.S. Men's 400m Title, Allyson Felix 2nd In Women's 400m To Make Olympic Team - USC Athletics

Olympics: Felix gets closer to making history while US sprinters just miss podium sweep

American Allyson Felix sets new women's Olympics medal record – The Denver Post

Allyson Felix looks solid in 400, advances to semifinals

Allyson Felix's quest for history has turned into a shot at redemption

Allyson Felix WINS 400m heat, advances to semis at Nationals

2016 Olympics Aug. 15 recap: Allyson Felix wins silver in 400m finals

U.S. Track and Field Olympic Trials - 2021 Results and Highlights From Day 1

Samuel, Benjamin, Sears & Felix Advance To Finals At The U.S. Olympic Team Trials - USC Athletics

Canada's Andre De Grasse wins 200m, Allyson Felix makes 400m Final – NBC10 Philadelphia

Shaunae Miller-Uibo, Allyson Felix Advance To 400m Final At Worlds - FloTrack

Allyson Felix - Wikipedia

Allyson Felix Wins Silver As The Bahamas' Miller Takes Gold In 400-Meter Final : The Torch : NPR

Allyson Felix advances in 400m at Olympic Trials; Sanya Richards-Ross out - NBC Sports