The 2012 Keio Challenger was a professional tennis tournament played on hard courts. It was the eighth edition of the tournament which was part of the 2012 ATP Challenger Tour. It took place in Yokohama, Japan between 12 and 18 November 2012.

Singles main-draw entrants Seeds Country Player Rank1 SeedTatsuma Ito651Rajeev Ram1122Yūichi Sugita1213Matteo Viola1494Hiroki Moriya1865Chen Ti2026Jamie Baker2377Brydan Klein2448 1 Rankings are as of November 5, 2012.

Other entrants The following players received wildcards into the singles main draw: Toshihide Matsui Yoshihito Nishioka Masato Shiga Kaichi Uchida

The following players received entry from the qualifying draw: Yuichi Ito Yuuya Kibi Shuichi Sekiguchi Michael Venus

Champions Singles

Matteo Viola def. Mirza Bašić, 7–6(7–3), 6–3

Doubles

Prakash Amritraj / Philipp Oswald def. Sanchai Ratiwatana / Sonchat Ratiwatana, 6–3, 6–4

External links [http Official Website]