In December 2017, during her first visit to Lake Louise, Gisin took an eighth place in the first of two downhills at the Canadian resort before taking her second World Cup podium in the second downhill the following day, finishing in third. The following week she made a successful return to St. Moritz when she took her first top 10 finish in a super-G, benefiting from an improvement in weather conditions to again finish second as part of a Swiss one-two, this time finishing 0.1 seconds behind Jasmine Flury. She went on to take the gold medal in the combined at the 2018 Winter Olympics, finishing third in the first run of downhill before holding off Mikaela Shiffrin and Holdener in the slalom leg to take the win, following in the footsteps of her sister, who won a gold medal in downhill in the 2014 Games.