PARIS (AP) — Coco Gauff lost in women’s doubles and mixed doubles at the Paris Olympics on Wednesday, ending her first Summer Games a day after her tearful exit in singles.

“At the end of the day, it’s over,” the 20-year-old American said. “I’ll try to take the positive out of it and do better next time.”

Gauff and her U.S. teammate, Jessica Pegula, were the top-seeded women’s pair but were eliminated in the second round by the Czech duo of Karolina Muchova and Linda Noskova 2-6, 6-4, 10-5 in a match tiebreaker in the afternoon. Then, at night, Gauff and Taylor Fritz exited mixed doubles with a 7-6 (2), 3-6, 10-8 loss in another match tiebreaker to Gabby Dabrowski and Felix Auger-Aliassime of Canada.

In Olympic tennis, first-to-10, win-by-two match tiebreakers are used in place of a traditional third set for all doubles matches.

On Tuesday, Gauff was defeated by Donna Vekic of Croatia in straight sets in the third round of singles. Gauff, who was seeded second in that event, got into an argument with the chair umpire over an officiating decision near the finish of that match.

All in all, it was an abrupt close to the Olympics for someone who was a U.S. flag bearer during the opening ceremony on Friday and, just a few days ago, was talking about hoping to leave the City of Light with three medals. Instead, she ended up 0 for 3.

“Obviously,” Gauff said, “I thought I had a good chance in all three events.”