[1] Through the years the training sessions became more intense and more professional, resulting in an invitation for the national heptathlon selection of the Netherlands in the end of 1997.

[1] After participating in several international junior nation challenges Hoos was invited for her first senior meeting in 2001 when she took part in the European Cup in Ried, Austria.

[1] During this event she reached the limits that were needed to participate in the European Junior Championships, but because there were two other Dutch athletes who did the same and who got higher scores she was still sidelined for the tournament.

[1] In 2004, she did not take part in any notable tournaments, but she did manage to become the best Dutch athlete at the European Cup meeting in Hengelo where she improved her personal best to 5631 points.

[1] During the event Hoos impressed with a massive score of 6214 points, bringing her straight among the world class performers and even breaking Karin Ruckstuhl's national record.

[1] That result was however enough to qualify for the World Championships in Osaka, but in the last week before the deadline a third Dutch athlete, Yvonne Wisse improved Hoos's score and as there were only three tickets (the others went to Ruckstuhl and Jolanda Keizer) available she was unable to go to Japan.

[1] Instead of participating at the World Championships she competed at an international event in Woerden and she won the meeting with 6199 points, which was enough for an Olympic nomination.

[1] At the end of 2007 Hoos decided to move to France to live with her partner and fellow athlete Rudy Bourguignon in Amiens.

[1] To refine some of her disciplines on the road to China she focused a bit more on the shot put and on the hurdles, resulting in two bronze medals at the Dutch National Championships.