Life member of the
Garville Netball Club from 1989 to 1995 and helping the club clinch five premierships in 1989, 1991, 1992, 1994 and 1995. In the national league, den Dekker was captain-coach of the Queensland Firebirds in 1997-98 before returning home to the now defunct
Adelaide Ravens. den Dekker made her Australian debut in 1985, and led Australian to two world championships as captain (1991 and 1995). Michelle played a total of 84 test matches for Australia between 1985 and 1995, including 71 as captain. As captain her team enjoyed a win loss ratio of 92% (65 wins, 6 losses). den Dekker was voted as Adelaide's greatest netballer to have fronted for the Adelaide Thunderbirds or Adelaide Ravens. She was inducted into the Australian Netball Hall of Fame in 2009. == Coaching career ==