Keio Challenger
| Keio Challenger | |
|---|---|
 2015 Keio Challenger
|
|
| ATP Challenger Tour | |
| Location | Yokohama, Japan |
| Category | ATP Challenger Tour |
| Surface | Hard |
| Draw | 32S/17Q/16D |
| Prize money | $50,000 |
| Website | Website |
The Keio Challenger is a professional tennis tournament played on hard courts. It is currently part of the Association of Tennis Professionals (ATP) Challenger Tour. It is held annually in Yokohama, Japan, since 1999 (but tournament didn't exist in years 2003–2006).
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