The American sprinter Allyson Felix, 35, won her heat in the 400 meters in 50.84 seconds on Tuesday morning in Tokyo to easily advance to the semifinals of the event, which will be held on Wednesday. The decorated track star,
The American sprinter Allyson Felix, 35, won her heat in the 400 meters in 50.84 seconds on Tuesday morning in Tokyo to easily advance to the semifinals of the event, which will be held on Wednesday. The decorated track star,