The 1978 Porsche Tennis Grand Prix was a women's singles tennis tournament played on indoor carpet courts at the Tennis Sporthalle Filderstadt in Filderstadt in West Germany. The event was part of the A category of the 1978 Colgate Series. It was the inaugural edition of the tournament and was held from 23 October through 29 October 1978.[1] First-seeded Tracy Austin won the singles title, her first as a professional, and earned $6,000 first-prize money as well as a Porsche 924.[1] [2]
Tracy Austin defeated Betty Stöve 6–3, 6–3
Tracy Austin / Betty Stöve defeated Mima Jaušovec / 
Virginia Ruzici 6–3, 6–2
| Event | W | F | SF | QF | Round of 16 | Round of 32 | ||
| style=background:#efefef | Singles | $6,000 | $3,000 | $1,800 | $900 | $600 | $325 |
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