PARIS - American teenager Coco Gauff rose to a career-best No. 13 in the WTA rankings on Monday after her runner-up finish to No. 1 Iga Swiatek at the French Open.

Gauff, an 18-year-old from Florida, jumped 10 spots by getting to her first Grand Slam final before losing to Swiatek 6-1, 6-3 last Saturday.

Gauff had never been past the quarterfinals at a major tournament. She has made it to the finals of singles and doubles at Roland Garros.

Her doubles partner, Jessica Pegula, moved into the singles top 10 for the first time, going from No. 11 to No. 8, thanks to her run to the quarterfinals. Like Gauff, the 28-year-old from New York lost to Swiatek, who has now won her past 35 matches in a row.

Last year’s French Open champion in singles and doubles, Barbora Krejcikova, lost in the first round of singles this time — only the third woman in the professional era to exit in the first round at Roland Garros a year after earning the trophy — and dropped from No. 2 in the rankings to No. 14. She pulled out of the doubles event two days later, saying she tested positive for COVID-19.

The French Open’s effect on the rank- ings for both the WTA and ATP will hold sway longer than usual, because the two professional tours have announced they will not award points this year for Wimbledon, which starts on June 27.