Rank Name Nationality Time Notes
1 Mark Henderson  United States 54.11
2 Eduardo Piccinini  Brazil 54.63
3 Brian Alderman  United States 54.75
4 Francisco Sánchez  Venezuela 54.99
5 Edward Parenti  Canada 55.23
6 Diego Cuenca  Colombia 55.67
7 José Meolans  Argentina 55.91
8 Ruben Calderon  El Salvador 56.04