2003 Copa AT&T – Singles

Nicolás Massú was the defending champion but lost in the first round to Agustín Calleri. Carlos Moyà won in the final 6–3, 4–6, 6–4 against Guillermo Coria.

2003 Copa AT&T – Singles

Nicolás Massú was the defending champion but lost in the first round to Agustín Calleri. Carlos Moyà won in the final 6–3, 4–6, 6–4 against Guillermo Coria.