Allyson Felix won the national 400m title, while World champion LaShawn Merritt was upset at the U.S. Championships in Eugene, Ore., on Saturday.
Felix, the Olympic 200m champion and 2011 World 400m silver medalist, surged in the final 100 meters to run down Natasha Hastings in the women’s 400m final, prevailing in 50.19.
“I just wanted to let them not get too far away from me, and I knew I could be strong coming home,” Felix told Lewis Johnson on NBCSN. “I’m a sprinter. I finally got to sprint a little bit.