1988 Copa Nabisco Royal Open

The 1988 Copa Nabisco Royal Open, also known as the Buenos Aires Grand Prix, was a men's Grand Prix tennis men's tournament held in on outdoor clay courts in Buenos Aires, Argentina. It was the 20th edition of the tournament and was held from 7 November through 14 November 1988. Seventh-seeded Javier Sánchez won the singles title.

Singles
🇪🇸 Javier Sánchez defeated 🇦🇷 Guillermo Pérez Roldán 6–2, 7–6
 * It was Sánchez's 3rd title of the year and the 5th of his career.

Doubles
🇪🇸 Carlos Costa / 🇪🇸 Javier Sánchez defeated 🇦🇷 Eduardo Bengoechea / 🇦🇷 José Luis Clerc 6–3, 3–6, 6–3
 * It was Costa's only title of the year and the 1st of his career. It was Sánchez's 2nd title of the year and the 4th of his career.