Phyllis Chanez Francis is an American track and field athlete. She won the gold medal at the 2017 World Championships in the 400 metres and 4 × 400 metres relay events.

The 2016 United States Olympic trials for track and field were held at Hayward Field in Eugene, Oregon. Organized by USA Track and Field, the ten-day competition lasted from July 1 to July 10 and served as the national championships in track and field for the United States.