Karker has been participating in FIS and AFP World Tour competitions since 2013 . She made her debut in the World Cup at the beginning of the 2015/16 season in Cardrona , which she finished in 11th place in the halfpipe . This was followed by third place on the Revolution Tour in Seven Springs , second place at the Nor-Am Cup in Calgary and first place at the Canadian Open Tour in Stoneham . In March 2017 she finished second in the halfpipe of the Canadian Open Tour in Stoneham. In the 2018/19 season she achieved her first podium finishes in the World Cup in the Secret Garden Skiresort and in Calgary with second place in the halfpipe and at the end of the season, 13th place in the overall World Cup and second place in the Halfpipe World Cup. She won the bronze medal in the halfpipe at the Winter X Games 2019 in Aspen and took fourth place at the 2019 World Championships in Park City . In the following season he came twice in second and third place and thus achieved eighth place in the overall World Cup and again second place in the Halfpipe World Cup. She won the silver medal at the Winter X Games 2020 .