The 2003 Pan American Race Walking Cup was held in two locations: both 20 kilometres events in Chula Vista, California, United States, on 15 March.

The men's 50 kilometres event was held one week earlier 15 km away in Tijuana, Baja California, México, on 9 March.

Here, the track of the Cup ran in the Paseo de los Héroes, zona del Río Tijuana, and the results were extracted from the inaugural competition of the IAAF World Race Walking Challenge, which was organized as part of the traditional XXVI International Race Walking Week (Spanish: Semana Internacional de la Caminata) held annually since in 1978.

[2] Because of a compromise with the transmitting TV companies, the start was scheduled at 10:00 rather than the usual 7:00, causing a great number of drop outs due to the hard climatic conditions during midday.

[6][8] Therefore, it remains unclear, whether they were entitled to win medals in the Pan American Race Walk Cup.