Career
Koiwai was born in Kitahiroshima, Hokkaido in 1998 and started playing golf when she was 8 years old. She won the Hokkaido Amateur Championship in 2014 and 2016. Koiwai turned professional and joined the LPGA of Japan Tour in 2017. In 2018, she recorded four runner-up finishes to rank 8th on the money list, and won the PGA Rookie of the Year award and the Japan Professional Sports Rookie of the Year award. She captured the 2019 Samantha Thavasa Girls Collection Ladies Tournament for her maiden win on the JLPGA. Her lone victory in 2020 was the Golf5 Ladies. In 2021, Koiwai recorded four wins and three second-place finishes, to finish 3rd on theAmateur wins
*2014 Hokkaido Amateur Championship *2016 Hokkaido Amateur Championship Source:Professional wins
LPGA of Japan Tour wins (8)
^Tournament shortened due to adverse conditions.References
External links
* * {{DEFAULTSORT:Koiwai, Sakura Japanese female golfers LPGA of Japan Tour golfers Sportspeople from Hokkaido 1998 births Living people 21st-century Japanese women