 In 1953, when she was a member of the national athletics team, she had her best results at 5.14 m in the long jump and 1.43 m in the high jump.In 1951 she also became a member of the national gymnastics team.Leușteanu made her debut at the 1954 World Championships in Rome, Italy, where she placed 4th with her team, 5th in the individual combined standings, and was a vault finalist.