In the 2006 season, Duck won a bronze medal in the AAA Indoor Championships in the 400 metres and selection for the 4x400 metres team in the 2006 European Championships in Athletics.
She was disqualified in the final of the AAA Outdoor Championships.
In 2007, she won silver in the 400 metres in the AAA Indoors.
She was selected for both the individual and team 400 metres for the 2007 European Athletics Indoor Championships, winner a bronze in the latter.
This biographical article relating to English athletics is a stub.