Athletics at the 1999 Pan American Games – Men's 100 metres

Qualification: First 2 of each heat (Q) and the next 2 fastest (q) qualified for the final.

Wind:
Heat 1: +1.6 m/s, Heat 2: -1.0 m/s, Heat 3: -0.5 m/s

Rank	Heat	Name	Nationality	Time	Notes
1	3	Claudinei da Silva	Brazil	10.19	Q
2	2	Bernard Williams	United States	10.28	Q
3	2	Patrick Jarrett	Jamaica	10.29	Q
4	1	Freddy Mayola	Cuba	10.31	Q
5	2	André da Silva	Brazil	10.35	q
6	1	Tim Harden	United States	10.40	Q
7	2	Luis Alberto Pérez-Rionda	Cuba	10.42	q
8	2	Nathanaël Esprit	Netherlands Antilles	10.46
9	3	Bradley McCuaig	Canada	10.48	Q
10	1	Dwight Ferguson	Bahamas	10.55
11	3	Joel Mascoll	Saint Vincent and the Grenadines	10.58
12	3	Edgardo Serpas	El Salvador	10.61
13	1	Niconnor Alexander	Trinidad and Tobago	10.62
13	3	Carlos Gats	Argentina	10.62
15	1	Ronald Promesse	Saint Lucia	10.63
16	3	Oscar Meneses	Guatemala	10.65
17	3	Ricardo Roach	Chile	10.69
18	3	Caimin Douglas	Netherlands Antilles	10.74
19	2	Devon Bean	Bermuda	10.83
20	2	Sherwin James	Dominica	10.89
21	1	Yvan Darbouze	Haiti	10.95
22	1	Wladimir Afriani	Haiti	11.04

Wind: +0.4 m/s

Rank	Name	Nationality	Time	Notes
	Bernard Williams	United States	10.08
	Freddy Mayola	Cuba	10.10
	Claudinei da Silva	Brazil	10.13
4	Tim Harden	United States	10.19
5	André da Silva	Brazil	10.21
6	Patrick Jarrett	Jamaica	10.23
7	Luis Alberto Pérez-Rionda	Cuba	10.27
8	Bradley McCuaig	Canada	10.31