2022 Keio Challenger
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Date31 October – 6 November (men's)
7 – 13 November (women's)
7 – 13 November (women's)
Edition15th (men's)
5th (women's)
5th (women's)
SurfaceHard
| 2022 Keio Challenger | |
|---|---|
| Date | 31 October – 6 November (men's) 7 – 13 November (women's) |
| Edition | 15th (men's) 5th (women's) |
| Category | ATP Challenger Tour ITF Women's World Tennis Tour |
| Surface | Hard |
| Location | Yokohama, Japan |
| Champions | |
| Men's singles | |
 Christopher O'Connell | |
| Women's singles | |
 Han Na-lae | |
| Men's doubles | |
 Victor Vlad Cornea /  Ruben Gonzales | |
| Women's doubles | |
 Saki Imamura / Naho Sato | |
The 2022 Keio Challenger was a professional tennis tournament played on hard courts. It was the 15th (men's) and 5th (women's) editions of the tournament and part of the 2022 ATP Challenger Tour and the 2022 ITF Women's World Tennis Tour. It took place in Yokohama, Japan between 31 October and 13 November 2022.
Seeds
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| AUS |
Christopher O'Connell | 100 | 1 |
| AUS |
John Millman | 142 | 2 |
| JPN |
Kaichi Uchida | 168 | 3 |
 BIH |
Damir Džumhur | 180 | 4 |
 TPE |
Wu Tung-lin | 207 | 5 |
| JPN |
Hiroki Moriya | 213 | 6 |
| JPN |
Yosuke Watanuki | 223 | 7 |
 CZE |
Zdeněk Kolář | 235 | 8 |
- 1 Rankings are as of 24 October 2022.[1]
Other entrants
The following players received wildcards into the singles main draw:
Tomoya Fujiwara- Shinji Hazawa
- Masamichi Imamura
The following players received entry into the singles main draw using protected rankings:
The following players received entry from the qualifying draw:
Hong Seong-chan- Taisei Ichikawa
- Yuki Mochizuki
Jonathan Mridha- Ryota Tanuma
- James Trotter
The following player received entry as a lucky loser:
- Rimpei Kawakami
