2009 Keio Challenger – Singles

Lee Hyung-taik was the defending champion, but he retired from playing tournaments before this event.

Takao Suzuki won in the final 6–4, 7–6(5), against Martin Fischer.

Seeds
• # 🇯🇵 Go Soeda (semifinals)

• # 🇰🇷 Im Kyu-tae (quarterfinals)

• # 🇩🇪 Dieter Kindlmann (quarterfinals)

• # 🇯🇵 Tatsuma Ito (second round)

• # 🇦🇹 Philipp Oswald (semifinals)

• # 🇸🇰 Pavol Červenák (first round)

• # 🇦🇺 Nick Lindahl (second round)

• # 🇦🇹 Martin Fischer (final)