Her greatest achievement was a gold medal 1991 IAAF World Indoor Championships, where she became France's first champion of the competition's history.

[8] Her finish in the senior race at the 1989 IAAF World Cross Country Championships was lower than the previous year's (she ended in 32nd place), but a strong French team topped by world champion Sergent, Martine Fays and Maria Lelut took the silver medals in the team competition.

[10] This mark stood as the national record for nearly a decade and placed her third in the world rankings that year, behind Paula Ivan and Yvonne Murray.

[11] She won the French cross country title at the start of March and this proved good preparation for the 1991 IAAF World Indoor Championships held the weekend after.

[5][11] She was France's first ever gold medallist at the competition proper (Gérard Lelièvre won at the precursor 1985 IAAF World Indoor Games).

[18] She won a fourth and final national title over 3000 m,[4] and a run of 8:40.38 minutes in Nice (the second fastest of her career) placed her sixth in the year's world rankings.

[2] Duros did not compete at a high level after that point with the sole exception of the first ever global 5000 metres held at the 1995 World Championships in Athletics.

[19] She is now married to fellow runner Pierre Toudret and supports younger athletes through UA Langueux, a local running club.