He made his debut in German top-flight
Eishockey-Bundesliga for
Düsseldorfer EG during the 1981-82 season. In 1983, de Raaf signed with local rivals
Kölner EC and moved back to Düsseldorf in 1988. At the end of his playing career, he played for
Adler Mannheim. De Raaf has won eleven German national championships as a player (84, 86, 87, 88, 90, 91, 92, 93, 96, 00, 01) and was named German ice hockey player of the year in the 92-93 season. ==International==