1988 Porsche Tennis Grand Prix

The 1988 Porsche Tennis Grand Prix was a women's tennis tournament played on indoor carpet courts at the Filderstadt Tennis Centre in Filderstadt in West Germany and was part of the Category 4 tier of the 1988 WTA Tour. It was the 11th edition of the tournament and was held from 10 October to 16 October 1988. First-seeded Martina Navratilova won the singles title, her third consecutive and fifth in total.

Singles
🇺🇸 Martina Navratilova defeated 🇺🇸 Chris Evert 6–2, 6–3
 * It was Navratilova's 7th singles title of the year and the 136th of her career.

Doubles
🇵🇱 Iwona Kuczyńska / 🇺🇸 Martina Navratilova defeated 🇮🇹 Raffaella Reggi / Elna Reinach 6–1, 6–4
 * It was Kuczynska's only title of the year and the 1st of her career. It was Navratilova's 6th doubles title of the year and the 141st of her career.