2019 She competed in the
2019 ITTF World Tour Grand Finals in the mixed doubles event with
Cho Dae-seong. They were knocked out in the quarterfinals by
Xu Xin and
Liu Shiwen, 0–3. She also participated in the
2019 Asian Table Tennis Championships in both the women's singles and the mixed doubles, winning against the much higher ranked
Cheng I-ching in the round of 32, 3–2, but lost to
Feng Tianwei in the round of 16, 0–3 in the women's singles. In the mixed doubles, she competed with Cho Dae-seong. They were knocked out in the quarterfinals by
Wang Chuqin and
Sun Yingsha, 1–3. Also in 2019, she won the mixed doubles with Cho Dae-seong in the Czech Open, becoming the youngest person to win a mixed doubles title in the ITTF World Tour at 15 years, 50 days. They won against
Jun Mizutani and
Mima Ito in the finals, 3–2.
2021 Shin was named to the South Korean Olympic team on 4 February 2021. She was 17 at the
2020 Summer Olympics in
Tokyo, making her the youngest ever Korean Olympic table tennis player, breaking a record previously held by
Ryu Seung-min. In March 2021, Shin played in WTT Doha. She lost to eventual semi-finalist
Miyuu Kihara in the round of 32 in the first WTT Contender event, but she beat Miyuu Kihara in their second match-up in the round of 64 of the WTT Star Contender. Shin then upset
Margaryta Pesotska in the round of 32. Shin also upset
Miu Hirano in the round of 16 in an aggressive and dominant win. During the 2021 World Table Tennis Championships held in Houston, United States, Shin Yu-bin sustained a right wrist injury. She competed in the women's doubles event but was forced to withdraw from the women's singles event before her first match due to worsening pain. Upon returning to South Korea, medical examinations revealed tendon damage in her wrist, requiring surgery and a long rehabilitation period. As a result, she missed several months of competition before making a comeback in 2022.
2023 Shin was selected for the South Korean national Asian Games team in the table tennis event at the
2022 Asian Games, which runs from September 22 to October 2, 2023. On September 22, 2023, she won the first and second rounds of the preliminary round with
Seo Hyo-won and
Jeon Ji-hee in the women's team preliminary match. On the 24th, the team won the quarterfinals 3–1 against Vietnam. They met Japan in the semifinals and lost 1:3 to end the group match. Shin Yu-bin also participated in mixed doubles with Im Jong-hoon. He lost to China in the semifinals and won the bronze medal. Shin and
Jeon Ji-hee competed in women's doubles and advanced to the semifinals by winning over
Taiwan. The opponent team was
Japan, which beat
China, the favorite. She lost the first set, but won 4:1 by scoring a down point. The final was the inter-Korean match. She also won the gold medal in the women's table tennis doubles at the Asian Games for the first time in 21 years.
2024 Shin Yu-bin competed in the
Paris Olympics, reaching the bronze medal match in all three events she participated in. Shin first won a bronze medal in the
mixed doubles event with
Lim Jong-hoon, then lost to
Hina Hayata in the
women's singles. Finally, in the
women's team event, she teamed up with
Jeon Ji-hee and
Lee Eun-hye to defeat the German team and secure her second bronze medal. ==Finals==