Castren was selected to represent Finland based on its world golf rankings. Her victory at MEDIHEAL placed her 30th in the Olympic golf rankings. With this first LPGA victory, she became the highest ranked Finnish golfer among the 60 Olympic players, consolidating her trip to Tokyo.

Castren graduated from the State of Florida on May 6, 2017 with a degree in International Business. She was part of the Women’s Golf Coaches Association and GolfWeek Second Team All-American Selection in 2014, an Honorable Mention of All-American by the WGCA and the All-American Third Team Selection by GolfWeek in 2017. Castren has been a three-time All-American All-ACC Selection (2014, 2016 and 2017) and is one of only five players in school history to have won All-ACC honors at least three times as Seminole.

Castren still reigns as Florida State’s all-time leader with seven career individual wins. His victories came in the Spring 2016 NCAA Shoal Creek Regional Championship (T1), Spring 2016 Florida Challenge (T1), Spring 2015 Jacksonville Classic (1), Spring 2014 Marsh Landing Intercollegiate, Spring 2014 Florida State Match-Up (1), the Fall 2016 Jim West Challenge (1) and the Spring 2017 Clemson Invitational, and she is still the all-time program leader with 24 career top 10s. She won medalist honors at the 2016 NCAA Shoal Creek Regional Championships and became just the second player in school history to win an individual championship at an NCAA Regional Championship.

Castren’s career stroke average of 72.52 was the school’s record when he graduated. She is currently ranked third in school history for career stroke average.

Castren played two seasons on the Symetra Tour in 2018 and 2019, before landing her card for the LPGA Tour 2020. In just six starts in 2020, she won enough to qualify via the silver roster for her first major tournament. , the 2020 PGA Women’s Championship. Castren was tied for ninth after the first round and finished the tournament tied for 23rd place.

“What a tremendous accomplishment for Matilda to represent Finland at the Tokyo Olympics,” said Seminole head coach Amy Bond. “This is the opportunity of a lifetime for her and I couldn’t be prouder that Mathilde represents her country. This will be the second time golf has been at the Olympics and you can be sure I will be glued to the show. Matilda is FSU Golf’s first Olympian and I can’t wait to watch.

For Castren, the past month has been a whirlwind.