She began playing on the Ladies European Tour (LET) and the LET Access Series (LETAS), where she won the HLR Golf Academy Open in Finland.

[3] In 2016, she again played on both tours and won the CitizenGuard LETAS Trophy on home turf, and the Xiamen International Ladies Open in China, her first LET title.

In 2018, van Dam divided her time between the LET and the Symetra Tour in the United States, where her best finish was a tie for 8th at the FireKeepers Casino Hotel Championship.

She won twice on the LET, at the Estrella Damm Ladies Open and Andalucia Costa Del Sol Open De España Femenino,[6][7] and finished second in the LET Order of Merit behind Georgia Hall.

In 2019, she won twice on the LET, the ActewAGL Canberra Classic and the Andalucia Costa Del Sol Open De España Femenino.