Korvasová took up cycle racing in 2015, initially alongside continuing her running career, using cycling as a form of cross-training. She initially competed in cycling for Sokol Louny. That year Korvasová also finished fourth in the junior competitions at the European Mountain Running Championships and the World Mountain Running Championships. She was also part of the Czech team that won the gold medal in the latter. Korvasová also enjoyed success in racewalking, becoming Czech junior champion in the 3 kilometres walk in 2015, competing in the junior category at the 2015 European Race Walking Cup and finishing 20th in the 10 kilometres race walk at the 2015 European Athletics Junior Championships.