Career
From 1999–2000 season on he played for 2. Bundesliga team Sportfreunde Siegen, promoted in 2004-2005 from the Regionalliga. Previously, he played for the amateur teams of Football Club Schalke 04, for whom he once appeared within the first team, and South Carolina Verl, where he was situated between 1995 and 1999.
In the crucial promotion season he hit ten goals in 31 appearances.
Bettenstaedt joined BV Cloppenburg in July 2007 after spending eight years at Siegen. In July 2008 he was registered to the second team of Cloppenburg.