Laurence first found World Cup success in the 2017-18 season, capturing a 14th and 17th-place results, both in slalom. These results qualified Laurence for her first ever Olympic Games, where she finished in 15th-place in PyeongChang. In the 2018-19 season St-Germain showed strong consistency, claiming 11 top-25 World Cup results in a combination of Slalom, City Events, Parallel Slaloms & Team Event disciplines. Laurence's season was highlighted by two 6th place finishes, one in Slalom at the 2019 World Championships, and another in the Stockholm, SWE City Event. Additionally, Laurence also had a 4th place finish as part of Team Canada in the Alpine Team Event hosted in Andorra.