also known as Jin Young Ko, is a South Korean professional golfer who plays on the LPGA Tour. By age 22 years, she had won 10 times on the LPGA of Korea Tour, was second at the 2015 Ricoh Women’s British Open, and had won the 2017 LPGA KEB Hana Bank Championship. Having become a member of the LPGA Tour for the 2018 season, she won her opening tournament in February – the ISPS Handa Women's Australian Open – as only the second player in LPGA history to win in her first tournament as a Tour member. With 13 top-10 finishes out of 25 tournaments played in 2018, she was named the LPGA Rookie of the Year, and completed the 2018 season as the 10th-ranked female player in the world. In 2019, she won her first two LPGA major championships at the ANA Inspiration and the Evian Championship. Ko completed the 2019 season with the official money title ($2,773,894), the Vare Trophy for the lowest scoring average (69.06), and was named LPGA Player of the Year. In 2020, she won the LPGA official money title ($1,667,925) having played in only four tournaments due to the COVID-19 pandemic, and finished the season as the number one ranked player in the world.