Lucie Ferauge gained her first international experience in 2017 when she reached the semi -finals in the 200-meter run at the U20 European Championships in Grosseto and was eliminated there with 23.92 seconds, while she was eliminated with the Belgian 4-time 100 Meter relay took sixth place in 45.28 s. At the IAAF World Relays 2019 in Yokohama , she retired with the 4 x 400 meter relay with 3: 30.69 minutes in advance and achieved with the mixed 4 x 100 meter relay in 3:25, 74 min eighth place. Then she won the bronze medal at the U20 European Championships in Borås, Sweden in 23.63 s.
In 2019 and 2020 Ferauge became Belgian indoor champion in the 200-meter run.
Personal bests
100 meters: 11.73 s (−0.4 m / s), June 23, 2019 in Lebbeke
60 meters (hall): 7.42 s, February 22, 2020 in Gent
200 meters: 23.56 s (+0.2 m / s), May 18, 2019 in Gent
200 meters (hall): 23.42 s, 22 February 2020 Ghent