Jonathans made her second appearance at the Olympics in the 2004 Athens. She played in the women's doubles with partner Mia Audina. They had a bye in the first round and defeated Ella Tripp and Joanne Wright of Great Britain in the second. In the quarterfinals, Jonathans and Audina lost to Lee Kyung-won and Ra Kyung-min of South Korea 5–15, 2–15. Jonathans also competed in the mixed doubles with partner Chris Bruil, who was her husband until 2008. They had a bye in the first round and were defeated by Kim Dong-moon and Ra Kyung-min of South Korea in the round of 16.
Jonathans also won a bronze (2002) and a silver medal (2006) with the Dutch women's team at the Uber Cup. As a part of the BC Amersfoort team with Yao Jie, Larisa Griga, Dicky Palyama and Eric Pang, Jonathans reached the final of the 2007 European Cup in Amersfoort where they lost against the team of NL Primoriye.
The BWF Grand Prix had two levels, the Grand Prix and Grand Prix Gold. It was a series of badminton tournaments sanctioned by the Badminton World Federation (BWF) and played between 2007 and 2017. The World Badminton Grand Prix was sanctioned by the International Badminton Federation from 1983 to 2006.
