The 2004 World Group play-offs decided which nations featured in World Group in the 2005 Fed Cup. The play-off winners went on to feature in World Group in 2005, while the losing nations joined Zonal Competition for 2005.

Thailand 3	Hua Mark Indoor Stadium, Bangkok, Thailand 10–11 July 2004 Rebound Ace (indoors)		Australia 2
1 2 3 1 Suchanun Viratprasert Nicole Pratt 6 2 1 6 6 1   2 Tamarine Tanasugarn Samantha Stosur 5 7 6 2 8 6   3 Tamarine Tanasugarn Nicole Pratt 1 6 6 4 6 1   4 Napaporn Tongsalee Samantha Stosur 6 4 0 6 0 6   5 Montinee Tangphong / Napaporn Tongsalee Lisa McShea / Christina Wheeler 6 4 3 6 5 7

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Brazil 1	Clube Paineiras do Morumby, São Paulo, Brazil 10–11 July 2004 Red clay (outdoors)		Croatia 4
1 2 3 1 Maria Fernanda Alves Ivana Abramović 6 3 6 0     2 Bruna Colósio Jelena Kostanić 0 6 1 6     3 Maria Fernanda Alves Jelena Kostanić 4 6 1 6     4 Bruna Colósio Darija Jurak 2 6 7 5 5 7   5 Carla Tiene / Bruna Colósio Ivana Abramović / Ivana Lisjak 4 6 2 6

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Estonia 2	Kadrioru Stadium, Tallinn, Estonia 10–11 July 2004 Red clay (outdoors)		Czech Republic 3
1 2 3 1 Margit Rüütel Klára Koukalová 7 5 5 7 6 2   2 Maret Ani Barbora Strýcová 63 77 7 5 6 8   3 Maret Ani Klára Koukalová 5 7 4 6     4 Margit Rüütel Barbora Strýcová 4 6 4 6     5 Maret Ani / Margit Rüütel Michaela Paštiková / Lucie Šafářová 6 2 6 4

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Ukraine 2	Elite Tennis Club, Illichivsk, Ukraine 10–11 July 2004 Red clay (indoors)		Germany 3
1 2 3 1 Tatiana Perebiynis Barbara Rittner 7 5 2 6 4 6   2 Yuliana Fedak Anna-Lena Grönefeld 2 6 6 2 6 2   3 Tatiana Perebiynis Anna-Lena Grönefeld 4 6 6 4 11 9   4 Yuliana Fedak Barbara Rittner 3 6 6 4 4 6   5 Yuliana Fedak / Tatiana Perebiynis Barbara Rittner / Jasmin Wöhr 6 3 4 6 3 6

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Bulgaria 2	TC Locomotiv, Plovdiv, Bulgaria 10–11 July 2004 Red clay (outdoors)		Japan 3
1 2 3 1 Tsvetana Pironkova Shinobu Asagoe 66 78 6 3 4 6   2 Desislava Topalova Saori Obata 7 5 3 0     retired 3 Desislava Topalova Shinobu Asagoe 1 6 77 63 4 6   4 Tsvetana Pironkova Yuka Yoshida 6 1 6 3     5 Maria Geznenge / Svetlana Krivencheva Shinobu Asagoe / Rika Fujiwara 3 6 2 6

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Slovakia 4	TK Slavia STU Agrofert, Bratislava, Slovakia 10–11 July 2004 Clay (outdoors)		Belarus 0
1 2 3 1 Ľubomíra Kurhajcová Tatsiana Uvarova 6 2 6 1     2 Martina Suchá Anastasiya Yakimova 6 0 6 2     3 Ľubomíra Kurhajcová Tatiana Poutchek 6 0 6 1     4 Henrieta Nagyová Darya Kustova 6 1 7 5     5 Ľubomíra Kurhajcová / Martina Suchá Darya Kustova / Tatiana Poutchek       not played

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Indonesia 4	Gelora Bung Karno Tennis Stadium, Jakarta, Indonesia 10–11 July 2004 Hard (outdoors)		Slovenia 1
1 2 3 1 Angelique Widjaja Katarina Srebotnik 6 4 6 3     2 Wynne Prakusya Tina Pisnik 6 1 6 4     3 Angelique Widjaja Tina Pisnik 6 4 5 7 6 1   4 Liza Andriyani Andreja Klepač 62 77 2 6     5 Wynne Prakusya / Angelique Widjaja Andreja Klepač / Tina Križan 6 2 6 2

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Canada 2	Dorval Tennis Club, Dorval, Canada 10–11 July 2004 Clay (outdoors)		Switzerland 3
1 2 3 1 Stéphanie Dubois Myriam Casanova 0 6 3 6     2 Marie-Ève Pelletier Timea Bacsinszky 3 6 4 6     3 Marie-Ève Pelletier Myriam Casanova 2 6 3 6     4 Aleksandra Wozniak Timea Bacsinszky 6 0 6 4     5 Mélanie Marois / Marie-Ève Pelletier Timea Bacsinszky / Martina Lautenschläger 78 66 710 68

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• Fed Cup structure