2004 Swisscom Challenge – Singles

Alicia Molik defeated Maria Sharapova in the final, 4–6, 6–2, 6–3 to win the singles tennis title at the 2004 Swisscom Challenge.

Justine Henin-Hardenne was the reigning champion, but did not compete this year.

Seeds
The top four seeds received a bye into the second round. • # 🇫🇷 Amélie Mauresmo (withdrew due to a left adductor strain)

• # 🇺🇸 Lindsay Davenport (withdrew due to a flu)

• # 🇷🇺 Elena Dementieva (semifinals)

• # 🇷🇺 Maria Sharapova (final)

• # 🇺🇸 Serena Williams (withdrew due to a left knee injury)

• # 🇷🇺 Vera Zvonareva (second round)

• # 🇺🇸 Venus Williams (quarterfinals)

• # 🇷🇺 Nadia Petrova (quarterfinals)

• # 🇯🇵 Ai Sugiyama (quarterfinals)

• # Patty Schnyder (semifinals)