Allyson Felix hopes to qualify for the 200- and 400-meter runs at the Rio Olympics this summer. A scheduling change has put more time between the 200 prelims and 400 final, which originally were just 75 minutes apart.
Allyson Felix hopes to qualify for the 200- and 400-meter runs at the Rio Olympics this summer. A scheduling change has put more time between the 200 prelims and 400 final, which originally were just 75 minutes apart. David J. Phillip AP
Allyson Felix hopes to qualify for the 200- and 400-meter runs at the Rio Olympics this summer. A scheduling change has put more time between the 200 prelims and 400 final, which originally were just 75 minutes apart. David J. Phillip AP

Allyson Felix cleared to try 200, 400 double for Olympics

March 08, 2016 08:02 PM