Her older sister Chaïne is also a Dutch international volleyball player. Their father Jean-Pierre played many international matches for the Belgium national volleyball team Staelens speaks Dutch, English, French and German.
Kim Staelens plays as a setter and is able to spike at 305 cm, while she is capable of blocking at 301 cm.
Born in Belgium both Staelens sisters were known to be talented players and decided to acquire for Dutch citizenship because they did not see enough future in the Belgian team So far she has played 154 international matches for the Dutch team
Staelens was part of the Dutch squad for the 2006 World Championship where the placed 8th. Hermanas Wervik Venture capital Wevelgem Bonduelle WC Venture capital Weert Marcq en Baroeul USSPA Albi University of Southern California Munster Houston Community College/Netto Martinus Amstelveen Impel Gwardia Wrocław CS Ştiinţa Bacău Before that she played mainly in the reserve teams in the Belgian First division.
As being only 15 years old she was having a hard time keeping up with her team mates during her first season in The Netherlands at Bonduelle WC. She moved to Venture capital weert and during her second season at the club in 1999 she captured her first two prizes, winning both the Dutch league and the cup.
In 2000 she moved to France to play for Marcq en Baroeul, where she struggled to find her place in the team She however decided to stay in France, but moved to another team Also at USSPA Albi she was unable to become a key player and to get used to the French lifestyle.
She then found her way to Germany where she signed a contract with University of Southern California Munster.
In Munster things went better for herself which also resulted in better results. During her first season she did not capture any prizes but Munster finished in both the German league and cup in second position.
Staelens was at that time still part of the Munster team, however she did miss the crucial part of the season due to a knee injury. This knee injury prevented her from playing volleyball during the 2004 and 2005 seasons and she was recovering from her injury in a sports clinic in Zeist.
Foreign a long time it was unsure whether she was able to return to her top level
As soon as she was able to play in the later part of 2005 she was however immediately being called up for the national squad and participated in several tournaments. Like most of her fellow national squad members and coach Avital Selinger she decided to sign a contract with Houston Community College/Netto Martinus Amstelveen to be part of a unique project on their way to the 2008 Summer Olympics. lieutenant was not much of a surprise that Martinus captured both the Dutch league title as they Dutch cup in that year.