Though she has only one 400m medal among her nine track and field Olympic prizes -- a sole silver from the 2016 Rio Olympics -- Team USA's track star Allyson Felix has decided to go for gold in the event at the 2020 Tokyo Olympics. She finished third in her heat, coming in at a blazing 50.84, and will advance to the semifinals. 

Felix will join Cuba's Roxana Gomez and the Bahamas' Shaunae Miller-Uibo in that race. Miller-Uibo, who won Rio gold in the 400m, also qualified for this year's 200m final.

Felix had attempted the 200m-400m double in Rio, but narrowly missed out on the shorter distance's final by 0.01 of a second to compatriot Jenna Prandini.