Van der Haar is a double junior world road race champion, winning in consecutive years, in 2011 and 2012.

She was part of a late six-woman breakaway from the peloton and won the race comfortably in a sprint for the line.

[8] A year later, she retained her title in a bunch sprint finish of 19 riders at the championships in Valkenburg, Netherlands,[9] having had a lead-out from Elinor Barker.

[12][13] In May 2013, she claimed her first professional victory on the opening stage of the Tour of Chongming Island in Shanghai, China.

[17] In July 2019, she married fellow cyclist Lars van der Haar,[18] and in March 2022, announced she was pregnant with their first child.