Briana Rollins breaks hurdling record at US Track Championships

"It was good," said Felix, who sat out of the 100 to concentrate on her signature event, the 200. "Just wanted to get out there, control the race."

Brianna Rollins blew away the competition on Saturday and positioned herself as an elite American hurdler :: Charlie Neibergall/AP

"It was good," said Felix, who sat out of the 100 to concentrate on her signature event, the 200. "Just wanted to get out there, control the race."