2009 Keio Challenger

The 2009 Keio Challenger was a professional tennis tournament played on outdoor hard courts. It was the seventh edition of the tournament which was part of the 2009 ATP Challenger Tour. It took place in Yokohama, Japan between 16 and 22 November 2009.

Seeds

 * Rankings are as of November 9, 2009.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇯🇵 Sho Aida
 * 🇯🇵 Toshihide Matsui
 * 🇯🇵 Koki Matsunaga
 * 🇯🇵 Junn Mitsuhashi

The following players received entry from the qualifying draw:
 * Chen Ti
 * 🇯🇵 Yuichi Ito
 * 🇷🇺 Alexander Kudryavtsev
 * Yi Chu-huan

Singles
🇯🇵 Takao Suzuki def. 🇦🇹 Martin Fischer, 6–4, 7–6(5)

Doubles
Yang Tsung-hua / Yi Chu-huan def. 🇰🇿 Alexey Kedryuk / 🇯🇵 Junn Mitsuhashi, 6–7(9), 6–3, [12–10]