Links
Tennis Association
| ATP | http://www.atpworldtour.com |
| Japan Tennis Association | http://www.jta-tennis.or.jp |
| Kanto Tennis Association | http://www.kanto-tennis.com |
| Kanagawa Tennis Association | http://www.kanagawa-tennis.jp |
Special Sponsor
| Ezaki Glico Co., Ltd. | https://www.glico.com/jp/ |
| Cybozu, Inc. | http://cybozu.co.jp |
| Suzunoya | http://www.suzunoya.com |
| Mizuno Corporation | http://corp.mizuno.com/jp/ |
Sponsor
| Winroader | http://www.winroader.co.jp |
| GODAI Tennis College | http://www.godai.gr.jp/group/ |
| Bridgestone Sports Co., Ltd. | http://www.bs-sports.co.jp |
Special Cooperation
| Windsor Corporation. | http://www.windsorracket.co.jp |
| Otsuka Pharmaceutical Co., Ltd. | http://www.otsuka.co.jp/ |
| Tamagoya | http://www.tamagoya.co.jp/ |
| Matsukou | http://www.matsukoufruits.com |
| Wakou Printing |
Cooperation
| Ito Co., Ltd | http://www.itolator.co.jp |
| HOTSHOT | http://hotshot.jp |
| Richmond Hotels | http://richmondhotel.jp/musashikosugi/ |
Keio University
| Keio University | http://www.keio.ac.jp |
| Keio University Tennis Club | http://www.keio-tennis.com |
| Keio University Tennis Club Official Blog | http://ameblo.jp/keiotennisteam/ |
| Keio University Tennis Club Official Facebook |
Keio Challenger
| Brog | http://ameblo.jp/keiochallenger2012/ |
| YouTube |