Americans Kerri Walsh Jennings and April Ross have finished the Olympic group stage unbeaten, but not before losing their first set of the Summer Games.

The U.S. women beat Switzerland 21-13, 22-24, 15-12 on Wednesday night to win their pool with a 3-0 record. They now await news on an opponent for the round-of-16, which begins Friday.

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Walsh Jennings is going for her fourth straight Olympic gold medal. Ross won silver in London.

The Swiss team of Isabelle Forrer and Anouk Verge-Depre did win the second set. The Americans fought off three set points before the Swiss converted the fourth.

It’s just the second set Walsh Jennings has ever lost at the Summer Games. She won three gold medals with Misty May-Treanor, sweeping Athens and Beijing before losing a single set in London.