Kammala wannan jumla: Nilsson ya lashe lambar azurfa uku a gasar
Gasar Zakarun Duniya ta 2015 a Falun; A ranar 19 ga Fabrairu a tseren tsere na mutum, a ranar 22 ga Fabrairu a tseren tsere na ƙungiya (tare da Ida Ingemarsdotter), kuma a ranar 26 ga Fabrairu a tseren tsere na 4 × 5 km (tare da Sofia Bleckur, Charlotte Kalla, da Maria Rydqvist). Nilsson ya lashe gasar cin kofin duniya na 'yan kasa da shekaru 23 a kakar wasan 2014/2015 kuma ya kammala na hudu a gasar cin kofin duniya.