Table: From 1978 onward, Most Porsche Tennis Grand Prix Titles, WTA 500, Stuttgart, England, Women, Tennis, Ranked.
| ACTIVE | PLAYER | TITLES |
|---|---|---|
| Martina Navratilova | 6 | |
| Martina Hingis | 4 | |
| Tracy Austin | 4 | |
| Lindsay Davenport | 3 | |
| Maria Sharapova | 3 | |
| A | Elena Rybakina (Current) | 2 |
| Anke Huber | 2 | |
| Kim Clijsters | 2 | |
| Justine Henin | 2 | |
| Angelique Kerber | 2 | |
| A | Iga Świątek | 2 |
| A | Jelena Ostapenko | 1 |
| Catarina Lindqvist | 1 | |
| Pam Shriver | 1 | |
| Gabriela Sabatini | 1 | |
| Mary Joe Fernández | 1 | |
| Mary Pierce | 1 | |
| Iva Majoli | 1 | |
| Sandrine Testud | 1 | |
| Nadia Petrova | 1 | |
| Jelena Janković | 1 | |
| Svetlana Kuznetsova | 1 | |
| Julia Görges | 1 | |
| A | Laura Siegemund | 1 |
| A | Karolína Plíšková | 1 |
| Petra Kvitová | 1 | |
| Ashleigh Barty | 1 |
2026 Final Elena Rybakina claimed her 13th WTA title in Stuttgart, defeating Karolína Muchová 7–5, 6–1.
Altitude Stuttgart sits at approximately 250 meters (820 feet) above sea level, nestled in a valley in southwestern Germany. This moderate elevation has minimal impact on ball speed compared to high-altitude events. However, since the Porsche Tennis Grand Prix is played indoors, the altitude becomes even less relevant — the controlled environment of the Porsche Arena eliminates all outdoor atmospheric variables.
Humidity This is one of the most unique tournaments on the WTA calendar because it is played indoors on clay. Thanks to MST (Moisture Storage Technology), the court maintains a constant moisture level inside the arena, which keeps it dust-free without needing to be watered. There is no wind or sun inside the arena. This makes conditions extremely consistent and predictable throughout the entire week.
Indoor Tournament The Porsche Tennis Grand Prix was played on indoor hard courts from 1978 to 2008, but has been contested on indoor clay courts since 2009. Playing indoors is a major advantage for players who struggle with wind and changing weather conditions on outdoor clay. The Porsche Arena in Stuttgart creates a fast, controlled atmosphere that slightly favors aggressive players over pure defensive baseliners.
Surface Indoor conditions eliminate wind, reduce humidity variation, and produce a slightly faster and lower-bouncing surface than outdoor clay, which benefits players with flat ball striking and heavy first-serve dominance. The playing qualities of the surface in the Porsche Arena are almost 100% identical to the courts at Roland Garros, making Stuttgart a key preparation stop before the French Open.