[1] Dekker started rowing in 1990 and made her international debut in the double sculls at the 1995 Junior World Championships in Poznań.

[2] In 2001, she formed a fours boat with Anneke Venema, Hurnet Dekkers and Carin ter Beek that finished fourth and fifth at the Rowing World Cup meetings in Sevilla and Munich.

[2] At the World Championships in Luzern with Christine Vink as a replacement of Hurnet Dekkers they won the bronze medal in the coxless fours.

[2] 2002 was a disappointing year for Dekker as she only reached two fourth places in World Cup meetings with Marlies Smulders, Nienke Hommes and Melina Bus in the fours.

[2] In 2006 Dekker remained in the eights, but at the World Championships in Eton she performed in the coxless fours with Posthuma, Nienke Kingma and Roline Repelaer van Driel to finish in fifth.