Siebel Open

In San Jose

Quarterfinals

Justin Gimelstob, United States, def. Kenneth Carlsen (8), Denmark, 6-3, 6-4; Davide Sanguinetti (6), Italy, def. Vincent Spadea, United States, 6-1, 7-5; Andre Agassi (1), United States, def. Vladimir Voltchkov, Belarus, 6-7 (7-3), 7-6 (8-6), 6-1.

Open 13

In Marseille, France

Quarterfinals

Jonas Bjorkman, Sweden, def. Dominik Hrbaty, Slovakia, 7-6 (9-7), 6-4; Nicolas Escude, France, def. Rodolphe Cadart, France, 7-5, 6-3; Roger Federer (1), Switzerland, def. Raemon Sluiter, the Netherlands, 6-4, 4-6, 6-4; Karol Kucera, Slovakia, def. Olivier Rochus, Belgium, 6-3, 6-3.

Vina del Mar Open

In Vina del Mar, Chile

Quarterfinals

David Sanchez, Spain, def. Andrea Gaudenzi, Italy, 6-7 (7-2), 6-1, 6-2; Marcelo Rios (3), Chile, def. Agustin Calleri (5), Argentina, 6-4, 7-6 (7-2); Albert Montanes, Spain, def. Jiri Vanek, Czech Republic, 6-0, 6-4; Gaston Gaudio (1), Argentina, def. Felix Mantilla (7), Spain, 6-2, 3-6, 6-3.

Diamond Games

In Antwerp, Belgium

Quarterfinals

Venus Williams (1), United States, def. Tina Pisnik, Slovenia, 6-1, 6-4; Justine Henin-Hardenne (3), Belgium, def. Ai Sugiyama, Japan, 6-2, 6-4; Daniela Hantuchova (4), Slovakia, def. Nathalie Dechy (8), France, 7-6 (7-4), 7-6 (6); Venus Williams (1), United States, def. Tina Pisnik, Slovenia, 6-1, 6-4.

Kim Clijsters (2), Belgium, def. Patty Schnyder (7), 7-5, 6-1.

Qatar Open

In Doha, Qatar

Quarterfinals

Anastasia Myskina (2), Russia, def. Dinara Safina, Russia, 6-2, 7-5; Elena Likhovtseva (5), Russia, def. Magdalena Maleeva (3), Bulgaria, 6-4, 6-2; Lina Krasnoroutskaya, Russia, def. Conchita Martinez (7), Spain, 7-6, 4-0 retired; Patricia Wartusch, Austria, def. Nicole Pratt (8), Australia, 0-6, 6-2, 6-4.