The 2003 Porsche Tennis Grand Prix was a women's tennis tournament played on indoor hard courts at the Filderstadt Tennis Club in Filderstadt, Germany that was part of Tier II of the 2003 WTA Tour. It was the 26th edition of the tournament and was held from 6 October until 13 October 2003. Third-seeded Kim Clijsters won the singles title and earned $98,500 first-prize money.[1]
See main article: 2003 Porsche Tennis Grand Prix – Singles. 
Kim Clijsters defeated Justine Henin-Hardenne 5–7, 6–4, 6–2
See main article: 2003 Porsche Tennis Grand Prix – Doubles. 
Lisa Raymond / 
Rennae Stubbs defeated Cara Black / Martina Navratilova 6–2, 6–4
| Event | W | F | SF | QF | Round of 16 | Round of 32 | ||
| style=background:#efefef | Singles | $98,500 | $53,000 | $28,300 | $15,150 | $8,100 | $4,350 |
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