| 2004 J&S Cup | |
|---|---|
| Date | April 26 – May 2 |
| Edition | 10th |
| Champions | |
| Singles | |
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| Doubles | |
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The 2004 J&S Cup was a Tier II tennis event on the 2004 WTA Tour that run from April 26 - May 2, 2004. It was held in Warsaw, Poland, and was the 10th year that the event was staged.The 2003 J&S Cup finalist Venus Williams won her first Warsaw title and second overall of the year.
The following players received wildcards into the main draw:
The following players received entry from the qualifying draw:
The following players received entry as Lucky Losers:
Venus Williams def.
Svetlana Kuznetsova, 6-1, 6-4
Silvia Farina Elia /
Francesca Schiavone def.
Gisela Dulko /
Patricia Tarabini, 3-6, 6-2, 6-1