He was first selected to represent Victoria in the men's youth eight who contested the Noel F Wilkinson Trophy in the Interstate Regatta within the 2001 Australian Rowing Championships.

[3] Douez was first selected to represent Australia in the men's eight which contested the 2002 World Rowing U23 Championships in Genoa and achieved a fourth placing.

At those 2003 championships he was also up front in the Australian men's coxed pair of Luke Pougnault and Jonathan Fievez both from Western Australia when they rowed to a silver medal.

[4] 2004 saw Douez selected to cox the Australian senior lightweight eight and he called their racing campaign to a bronze medal at the 2004 World Rowing Championships in Banyoles.

[4] In 2005 Douez was selected to steer the Australian coxed pair at the 2005 World Rowing Championships in Gifu, Japan with Hardy Cubasch at bow and Sam Conrad stroking.