1990 World Junior Championships in Athletics – Women's 400 metres

Rank	Name	Nationality	Time
	Fatima Yusuf	Nigeria	50.62
	Charity Opara	Nigeria	51.28
	Manuela Derr	East Germany	51.95
4	Sue Andrews	Australia	52.23
5	Julia Merino	Spain	53.48
6	Nancy McLeón	Cuba	53.58
7	Marína Vasarmídou	Greece	53.58
8	Anja Rücker	East Germany	54.16

Rank	Name	Nationality	Time	Notes
1	Charity Opara	Nigeria	51.69	Q
2	Manuela Derr	East Germany	52.91	Q
3	Nancy McLeón	Cuba	53.32	Q
4	Julia Merino	Spain	53.34	Q
5	Catherine Scott	Jamaica	53.46
6	Natalya Sniga	Soviet Union	54.17
7	Ester Goossens	Netherlands	54.70
8	Nicole Hylaire	France	55.69

Rank	Name	Nationality	Time	Notes
1	Fatima Yusuf	Nigeria	52.15	Q
2	Sue Andrews	Australia	53.40	Q
3	Marína Vasarmídou	Greece	53.83	Q
4	Anja Rücker	East Germany	54.04	Q
5	Claudine Williams	Jamaica	54.28
6	Yana Burtasenkova	Soviet Union	54.35
7	Steffanie Smith	United States	54.44
8	Yojani Casanova	Cuba	56.23

Rank	Name	Nationality	Time	Notes
1	Fatima Yusuf	Nigeria	52.97	Q
2	Yana Burtasenkova	Soviet Union	54.66	Q
3	Nicole Hylaire	France	54.85	Q
4	Catherine Scott	Jamaica	54.94	q
5	Cheryl Allen	Canada	55.16
6	Rosa Magaly Segovia	Colombia	57.14

Medalists

Rank	Name	Nationality	Time	Notes
1	Charity Opara	Nigeria	52.77	Q
2	Manuela Derr	East Germany	53.90	Q
3	Claudine Williams	Jamaica	54.02	Q
4	Steffanie Smith	United States	54.72	q
5	Stefka Mineva	Bulgaria	56.33
6	Mireille Bara-Ang	Central African Republic	64.80
	Camille Noel	Canada	DNF

Rank	Name	Nationality	Time	Notes
1	Sue Andrews	Australia	53.53	Q
2	Anja Rücker	East Germany	54.01	Q
3	Julia Merino	Spain	54.18	Q
4	Natalya Sniga	Soviet Union	54.27	q
5	Yojani Casanova	Cuba	55.00	q
6	Melrose Mansaray	Sierra Leone	56.44

Rank	Name	Nationality	Time	Notes
1	Nancy McLeón	Cuba	53.70	Q
2	Ester Goossens	Netherlands	54.27	Q
3	Marína Vasarmídou	Greece	54.60	Q
4	Renée Poetschka	Australia	55.18
5	Mirjana Šola	Yugoslavia	55.52
6	Shanelle Porter	United States	56.63