In a period spanning 1984 to 2002, she competed at IAAF World Cross Country Championships on thirteen occasions, making her one of the most frequent participants at the event.

Born in Tulcea, Romania, Elena Fidatov-Moruzov made her international debut at the 1984 IAAF World Cross Country Championships, reaching the top 40 in the women's long race.

She was much improved at the 1985 World Cross Country event and her tenth-place finish helped the Romanian women, led by Fiţa Lovin, to the team bronze medal.

[5] She also made her debut at the 1994 IAAF World Half Marathon Championships, where she was fifth and easily took the team title alongside medallists Iulia Negura and Anuța Cătună.

[17] The thirty-six-year-old also had one of her highest placings at the 1997 IAAF World Cross Country Championships, coming twelfth in the women's long race.

[18] She ended the year with a silver medal at the 1997 European Cross Country Championships, leading Romania to second place in the team rankings.

[19] She failed a doping control test at the 1998 Cross Zornotza after nandrolone was detected in her system,[20] an infraction which led to a two-year ban from the sport.