Duros returned to grass at the beginning of 1989 and was the winner at the Cross Ouest-France. 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. Individual success came on the track as she came third in the 3000 m at the Athletissima meeting before going on to set a new French record of 8:38.97 minutes for the distance in Nice. 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. In addition to this, she had middle-distance success with a national title over 1500 m and a win over that distance at the European Cup "B" Final.