Métraux started playing golf at the age of ten, together with her sister
Kim Métraux, who is also an LET member. At 15, she played in her first international event at the 2012
Junior Open Championship, made the cut and soon became part of the Swiss National Team. She represented Switzerland at the 2013
European Girls' Team Championship and three
European Ladies' Team Championships (2014, 2015, 2016), where the team won a silver (2015) and a bronze medal (2014). She also played in two editions of the
Espirito Santo Trophy together with her sister in
2014 and in
2016, where the team won the silver medal behind South Korea. She also participated in the 2017
Vagliano Trophy in Bogogno, Italy, where her team (Continental Europe) won 15–9. Individually, Métraux was runner-up at the 2013 Austrian International Amateur and won the 2015 Swiss International Championship. She participated in four
European Ladies Amateur Championships, earning a third and fourth place in 2017 and 2016 respectively, signing for her career best score of 62 (–10) in the second round of the 2016 edition. Another amateur achievement was qualifying for the
2017 U.S. Women's Open in
Bedminster, New Jersey. Métraux graduated from Auguste Piccard High School in 2014 and in August, at the age of 17, joined
Florida State University where she won three times individually in her junior year and six times with her team. During her career with
Florida State Seminoles women's golf, she earned All-America honors for both her junior and senior years. Her best personal finish at the
NCAA Division I Women's Golf Championships was a tie for 5th in 2018. She graduated in April 2018 with a degree in Business Management. ==Professional career==