Athletics at the 2007 Pan American Games – Men's 400 metres

The men's 400 metres event at the 2007 Pan American Games was held on July 23–25.

Medalists

Gold	Silver	Bronze
Chris Brown Bahamas	Tyler Christopher Canada	Chris Lloyd Dominica

Qualification: First 3 of each heat (Q) and the next 4 fastest (q) qualified for the semifinals.

Rank	Heat	Name	Nationality	Time	Notes
1	1	Chris Brown	Bahamas	45.12	Q
2	4	Avard Moncur	Bahamas	45.27	Q
3	1	Lionel Larry	United States	45.32	Q
4	1	Arismendy Peguero	Dominican Republic	45.34	Q, PB
5	4	Renny Quow	Trinidad and Tobago	45.35	Q, PB
6	1	William Collazo	Cuba	45.63	q, PB
7	2	Jamaal Torrance	United States	45.65	Q
8	2	Chris Lloyd	Dominica	45.83	Q
9	4	Leford Green	Jamaica	45.89	Q
10	3	Tyler Christopher	Canada	45.99	Q
11	3	Alleyne Francique	Grenada	46.05	Q
12	3	Ato Modibo	Trinidad and Tobago	46.25	Q
13	3	Carlos Santa	Dominican Republic	46.34	q
13	4	Félix Martínez	Puerto Rico	46.34	q
15	2	Omar Cisneros	Cuba	46.51	Q
16	4	Nathan Vadeboncoeur	Canada	46.76	q
17	1	Sanderlei Parrela	Brazil	46.85
18	2	Edino Steele	Jamaica	47.12
19	2	Anghelo Edmund	Panama	47.41
20	3	Andrés Silva	Uruguay	47.73
21	2	Rodrigo Bargas	Brazil	47.88
22	1	Melville Rogers	Saint Kitts and Nevis	48.02
23	2	Camilo Quevedo	Guatemala	49.19
24	4	David Pierre	Haiti	49.26
25	3	Charmant Ollivierre	Saint Vincent and the Grenadines	50.13
	1	David Hamil	Cayman Islands	DNS

Qualification: First 4 of each semifinal (Q) qualified directly for the final.

Rank	Heat	Name	Nationality	Time	Notes
1	2	Tyler Christopher	Canada	45.28	Q
2	2	Lionel Larry	United States	45.40	Q
3	2	Avard Moncur	Bahamas	45.44	Q
4	1	Chris Brown	Bahamas	45.51	Q
5	2	Alleyne Francique	Grenada	45.57	Q
6	1	Chris Lloyd	Dominica	45.63	Q
7	2	Renny Quow	Trinidad and Tobago	45.74
8	1	William Collazo	Cuba	45.75	Q
8	1	Jamaal Torrance	United States	45.75	Q
10	1	Arismendy Peguero	Dominican Republic	45.75
11	1	Ato Modibo	Trinidad and Tobago	46.42
12	2	Félix Martínez	Puerto Rico	46.60
13	2	Omar Cisneros	Cuba	46.62
14	1	Leford Green	Jamaica	46.80
15	1	Nathan Vadeboncoeur	Canada	47.39
16	2	Carlos Santa	Dominican Republic	47.45

Rank	Lane	Name	Nationality	Time	Notes
	5	Chris Brown	Bahamas	44.85	SB
	4	Tyler Christopher	Canada	45.05
	6	Chris Lloyd	Dominica	45.40
4	7	William Collazo	Cuba	45.45	PB
5	8	Alleyne Francique	Grenada	45.49	SB
6	2	Avard Moncur	Bahamas	45.51
7	1	Jamaal Torrance	United States	46.05
	3	Lionel Larry	United States	DNF