Ledecká made her Olympic debut in alpine skiing at the 2018 Winter Olympics, while also being qualified for alpine snowboarding. She won the gold medal in super-G in alpine skiing at the 2018 Winter Olympics in a historic upset. She was visibly shocked after finishing 0.01 seconds ahead of the 2014 Olympics defending gold medalist Anna Veith, who had already been proclaimed the winner by many media outlets. Ledecká was ranked 49th in the event prior to the Olympics and had never medalled in any World Cup level international skiing event. To make the feat even more surprising to reporters, she was rumored to be allegedly racing on skis borrowed from Mikaela Shiffrin (both racers are sponsored by Atomic). She refused to remove her goggles for the post-victory press conference, insisting that this is her trademark (which is true), and when pressed by reporters she cleverly stated that she had skipped wearing makeup as she had not expected to win the event. Her snowboard coach, American Justin Reiter, arrived at the start of the Ladies PGS event with his reversible Czech team jacket confidently already turned gold side out. After victory in the parallel giant slalom she became the first ever female athlete to win an Olympic gold medal in two different disciplines during the same Winter Olympics (Anfisa Reztsova had previously won gold in different disciplines but not at the same Olympics: cross country skiing in 1988 and biathlon in 1992 and 1994). Ledecká was chosen as the flag bearer for the Czech Republic at the closing ceremony.