2023 Keio Challenger

Tennis tournament

2023 Keio Challenger

Date| 20 – 26 November (men's)
27 November – 3 December (women's)
Edition| 16th (men's)
6th (women's)
Category| ATP Challenger Tour
ITF Women's World Tennis Tour
Surface| Hard
Location| Yokohama, Japan
2022 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
| <- 2022 · | Keio Challenger | · 2024 ->

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The 2023 Keio Challenger was a professional tennis tournament played on hard courts. It was the 16th (men's) and 6th (women's) editions of the tournament and part of the 2023 ATP Challenger Tour and the 2023 ITF Women's World Tennis Tour. It took place in Yokohama, Japan between 20 November and 3 December 2023.

## Men's singles main-draw entrants[edit]

### Seeds[edit]

Country  | Player  | Rank1 | Seed

|
|
|

JPN | Yosuke Watanuki | 81  | 1
AUT | Jurij Rodionov | 107  | 2
USA | Michael Mmoh | 109  | 3
AUS | James Duckworth | 113  | 4
~~USA~~ | ~~Maxime Cressy~~ | ~~127~~ | ~~5~~
ITA | Luca Nardi | 128  | 6
AUS | Marc Polmans | 158  | 7
SUI | Leandro Riedi | 160  | 8

* 1 Rankings are as of 13 November 2023.[1]

### Other entrants[edit]

The following players received wildcards into the singles main draw:

* Masamichi Imamura
* Rio Noguchi
* Rei Sakamoto

The following player received entry into the singles main draw as an alternate:

* Altuğ Çelikbilek

The following players received entry from the qualifying draw:

* August Holmgren
* Kalin Ivanovski
* Omar Jasika
* Naoki Nakagawa
* Colin Sinclair
* Yasutaka Uchiyama

The following players received entry as lucky losers:

* Chung Yun-seong
* Mathys Erhard
* Giovanni Fonio

## Champions[edit]

### Men's singles[edit]

Main article: 2023 Keio Challenger – Men's singles

* vs.

### Women's singles[edit]

* vs.

### Men's doubles[edit]

Main article: 2023 Keio Challenger – Men's doubles

* /  vs.  /

### Women's doubles[edit]

* /  vs.  /

## References[edit]

1. ^ "Rankings | Singles | ATP Tour | Tennis". ATP Tour.

* v
* t
* e

2023 ATP Challenger Tour

« 2022

2024 »

* Canberra
* Nouméa
* Nonthaburi 1
* Oeiras 1
* Tigre 1
* Nonthaburi 2
* Oeiras 2
* Tigre 2
* Tenerife 1
* Piracicaba
* Nonthaburi 3
* Ottignies-Louvain-la-Neuve
* Quimper
* Concepción
* Koblenz
* Burnie
* Cleveland
* Tenerife 2
* Vilnius
* Tenerife 3
* Manama
* Chennai
* Cherbourg
* Monterrey
* Bangalore
* Rome, Georgia
* Rovereto
* Pau
* Pune
* Waco
* Puerto Vallarta
* Antalya
* Lugano
* Santiago
* Phoenix
* Viña del Mar
* Székesfehérvár
* Biel/Bienne
* Les Franqueses del Vallès
* Saint-Brieuc
* Zadar
* Mexico City
* Sanremo
* Lille
* Girona
* Barletta
* Murcia
* San Luis Potosí
* Sarasota
* Madrid
* León
* Split
* Oeiras 3
* Florianópolis
* Morelos
* Roseto degli Abruzzi
* Tallahassee
* Seoul
* Ostrava
* Rome
* Savannah
* Buenos Aires 1
* Aix-en-Provence
* Cagliari
* Gwangju
* Prague 1
* Coquimbo
* Busan
* Mauthausen
* Francavilla al Mare
* Prague 2
* Bordeaux
* Turin
* Tunis
* Oeiras 4
* Skopje
* Little Rock
* Troisdorf
* Vicenza
* Heilbronn
* Surbiton
* Prostějov
* Tyler
* Nottingham
* Perugia
* Bratislava 1
* Lyon
* Palmas del Mar
* Ilkley
* Montechiarugolo
* Poznań
* Blois
* Cali
* Modena
* Medellín
* Bloomfield Hills
* Karlsruhe
* Milan
* Troyes
* Santa Fe 1
* Braunschweig
* Salzburg
* Iași
* San Benedetto del Tronto
* Chicago
* Granby
* Trieste
* Amersfoort
* Pozoblanco
* Tampere
* Zug
* Segovia
* Verona
* Salinas
* Astana
* Porto
* San Marino
* Lüdenscheid
* Lexington
* Liberec
* Santo Domingo
* Banja Luka
* Cary 1
* Cordenons
* Meerbusch
* Stanford
* Grodzisk Mazowiecki
* Todi
* Winnipeg
* Augsburg
* Lima 1
* Prague 3
* Zhuhai
* Como
* Mallorca
* Zhangjiagang
* Genoa
* Seville
* Shanghai
* Tulln
* Cassis
* Istanbul
* Szczecin
* Rennes
* Cary 2
* Guangzhou
* Santa Cruz
* Bad Waltersdorf
* Saint-Tropez
* Antofagasta
* Columbus
* Sibiu
* Bogotá
* Orléans
* Braga
* Charleston
* Alicante
* Campinas
* Mouilleron-le-Captif
* Lisbon
* Tiburon
* Bratislava 2
* Málaga
* Buenos Aires 2
* Shenzhen 1
* Fairfield
* Olbia
* Santa Fe 2
* Shenzhen 2
* Hamburg
* Brest
* Curitiba
* Playford
* Ortisei
* Bergamo
* Charlottesville
* Guayaquil
* Ismaning
* Sydney
* Helsinki
* Calgary
* Knoxville
* Lima 2
* Matsuyama
* Montevideo
* Champaign
* Danderyd
* Drummondville
* Kobe
* Brasília
* Valencia
* Yokohama

* v
* t
* e

2023 ITF Women's World Tennis Tour

« 2022

2024 »

* January–March
* April–June
* July–September
* October–December

W100 tournaments|

* Oeiras
* Charleston
* Bonita Springs
* Wiesbaden
* Trnava
* Madrid
* Surbiton
* Ilkley
* Vitoria-Gasteiz
* Granby
* Figueira da Foz
* San Bartolomé de Tirajana
* Landisville
* Tokyo
* Shenzhen
* Shrewsbury
* Les Franqueses del Vallès
* Charleston 2
* Takasaki
* Takasaki 2
* Valencia
* Dubai

W80 tournaments|

* Zaragoza
* Gifu
* Brasília
* Le Neubourg
* Macon
* Poitiers
* Tyler

W60 tournaments|

* Canberra
* Vero Beach
* Andrézieux-Bouthéon
* Sunderland
* Burnie
* Rome (United States) 1
* Grenoble
* Orlando
* Altenkirchen
* Irapuato
* Trnava 1
* Arcadia
* Astana
* Trnava 2
* Canberra 2
* Pretoria
* Canberra 3
* Croissy-Beaubourg
* Chiasso
* Koper
* Bellinzona
* Charlottesville
* Oeiras
* Istanbul
* Prague 1
* Fukuoka
* Zagreb
* Rome (Italy) 3
* Hechingen
* Cordenons
* Přerov
* Prague 2
* Montreux
* Berkeley
* Caldas da Rainha
* Templeton
* Rome (United States) 2
* Rancho Santa Fe
* Hamburg
* Saguenay
* Playford
* Glasgow
* Toronto
* Sydney
* Bratislava
* Nantes
* Calgary

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