Athletics at the 1975 Pan American Games – Women's 400 metres

The women's 400 metres event at the 1975 Pan American Games was held in Mexico City on 17 and 18 October.

Medalists

Gold	Silver	Bronze
Joyce Yakubowich  Canada	Debra Sapenter  United States	Lorna Forde  Barbados

Results

Heats

Rank	Heat	Name	Nationality	Time	Notes
1	3	Lorna Forde	Barbados	52.77	Q
2	3	Helen Blake	Jamaica	53.06	Q
3	1	Debra Sapenter	United States	53.18	Q
4	2	Sharon Dabney	United States	53.19	Q
5	2	Joyce Yakubowich	Canada	53.21	Q
6	1	Margaret McGowen	Canada	53.26	Q
7	3	Eia Cabreja	Cuba	53.30	q
8	1	Debbie Byfield-White	Jamaica	54.26	q
9	1	Alejandra Ramos	Chile	56.06
10	3	Zonia Meigham	Guatemala	56.23
11	2	June Smith	Trinidad and Tobago	56.31
12	2	Margarita Grun	Uruguay	56.55
13	2	Freida Davey	Barbados	56.66
14	3	Ruth Alexander	Trinidad and Tobago	56.71
15	1	Araceli Arana	Mexico	56.75
16	2	Rose-Marie Gauthier	Haiti	1:06.60

Final

Rank	Name	Nationality	Time	Notes
	Joyce Yakubowich	Canada	51.62	GR
	Debra Sapenter	United States	52.22
	Lorna Forde	Barbados	52.36
4	Helen Blake	Jamaica	52.43
5	Sharon Dabney	United States	52.68
6	Margaret McGowen	Canada	53.11
7	Debbie Byfield-White	Jamaica	54.19
8	Eia Cabreja	Cuba	54.40