[1] Nilsson's sister Emma (three years older) is also a professional golfer on the Ladies European Tour.

[3] Nilsson won the 2015 Tourfinal Vellinge Open on the Swedish Golf Tour while still an amateur.

She turned professional and joined the 2016 LET Access Series as a teenager, and had four top-10 finishes in her rookie season.

The following year, she won the Ladies Norwegian Open and the Swedish Golf Tour Order of Merit.

[4] Nilsson finished sixth at the Q-School for the 2019 Ladies European Tour behind Bronte Law, Linnea Ström, Esther Henseleit, Sian Evans and Leona Maguire, after losing a playoff to Maguire for the fifth and final full card.