Sharpe announced her arrival on the international scene in halfpipe when she won silver at the 2015 World Championships. She would say of her last run and coaching later that "I went big for the last run and brought all the pieces together that I've worked so hard for. We had a crazy training camp in Calgary before coming here and my coaches were amazing. They made me a better skier in a week and I owe my consistency to them". Some discounted her win as most of the competitive skiers were at Winter X Games XIX that year, which was scheduled at the same time as the World Championships. Sharpe would back up her podium pedigree with a gold medal win on the 2014–15 FIS Freestyle Skiing World Cup to end the season. She also placed second in the Breckenridge Dew Tour in 2015.