 Van Kampen saved 7 games for HCAW in 2004, third in the Hoofdklasse.In 2005, he moved to Instant Holland A90 and was 1-2 with 6 saves (4th in Hoofdklasse) and a 1.05 ERA in 26 outings.He was back with the Dutch squad for the 2005 European Championship (hurling two games as the Netherlands won the Gold).