She represented France at the 2015 Junior Golf World Cup, the Espirito Santo Trophy in 2016 and 2018, the European Ladies' Team Championship four times and the European Girls' Team Championship three times, winning the event in 2014.

Laisné excelled individually and in 2013 won the Belgian International Under 18, in 2014 the Championnat de France des Jeunes Minimes (Girls 15-16), Total International Juniors of Belgium, and the European Ladies Club Trophy.

After a pair of victories in the LET Access Series, the Santander Golf Tour Lauro in Spain and Lavaux Ladies Open in Switzerland,[5] Laisné surged to number 13 in the Women's World Amateur Golf Ranking, to qualify for the 2020 U.S. Women's Open.

[8] In her rookie season, she made 3 cuts in 18 starts with a best finish of T16 at the Palos Verdes Championship.

Relegated to the Epson Tour for 2023, Laisné won the Florida's Natural Charity Classic, the first event of the season.