EUGENE, Ore.—Jeremy Wariner isn’t invincible anymore—a point LaShawn Merritt proved once again Thursday night.

Merritt pulled his second upset of the year over the world’s supposed fastest 400-meter runner, pulling away from Wariner in the final 150 meters to win the U.S. Olympic track and field trials.

It was the second big upset of the night in America’s trials. In the pool in Omaha, 200-meter swimmer Brendan Hansen finished a shocking fourth—but unlike Hansen, Wariner still did enough to earn his spot on the Olympic team in his best event.

“Not at all,” Wariner said when asked if he was disappointed. “I just came out here to make the team.”

Merritt finished in 44 seconds flat, defeating Wariner by 0.20. Earning the third spot was national indoor champion David Neville.

Moments before, the women’s 400 went much more to form, with Sanya Richards winning and Mary Wineberg and Dee Dee Trotter capturing the other two spots.

The 1,500-meter quarterfinals were later Thursday night, with Bernard Lagat, Lopez Lomong, Alan Webb and Leo Manzano all in the field.