Ahn suffered her first defeat in 2025, and her plans to win five consecutive international championships have also failed

The Korean badminton national team's signature player Ahn Se Young lost to Chen Yufei and failed to achieve her third consecutive BWF World Tour Super 750 Series Singapore Open title.

Ahn Se-ying lost for the first time this year, and her five consecutive international championships also failed

An Seying (world No. 1) lost 0-2 (13-21, 16-21) to Chen Yufei (world No. 5) in the Women's Singles quarterfinals in Singapore on May 30 (local time). So far, the dream of winning the women's singles championship in 2023 and 2024 has also come to an end.

Chen Yufei, a gold medalist at the Tokyo 2020 Olympics held in 2021, is known as a "natural enemy" ahead of An Seying in terms of opponent record. Due to the day's loss, An Xiying rewrote her record against Chen Yufei to 11-13, and Chen Yufei continued to lead.

In March this year, An Xiying defeated Chen Yufei in the final of the Orleans Masters and the quarterfinals of the All England Open, seemingly ending the relationship between natural enemies, but bowed her head in the second showdown after more than two months. This is the first defeat that An Xiying has tasted at an international competition in 2025. An Se Ying has won the Malaysia Open, India Open, Orleans Masters, All England Open this season, and recently won five women's singles matches at the 2025 Sudirman Cup (World Mixed Team Championships) with a score of 2-0.

For An Seying, who has won singles in the previous four times, she has not achieved the great cause of winning five consecutive international championships. After the regret, Ahn Se Ying will challenge for the title again at the BWF World Tour Super 1000 Series Indonesia Open to be held in Indonesia from the 3rd to the 8th of next month.